635 Matching Annotations
  1. Oct 2026
    1. patient 6

      Case2: Patient 6, Male, 20 years old

      DiseaseAssertion: Glanzmann thrombasthenia type I (Diagnosed at 2 months of age)

      FamilyInfo: N/A

      ParentalGenotype: N/A

      CasePresentingHPOs: N/A

      CaseHPOFreeText: Bleeding phenotypes are not specified per patient in this article, rather, it states: "Petechia, epistaxis, and prolonged bleeding after trauma were the most common symptoms among studied patients"

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: This patient has type 1 Glanzmann thrombasthenia; therefore, according to this article, this proband had between 0-5% of normal levels of surface GPIIb/IIIa expression.

      PlateletAggregation: Prolonged bleeding time, abnormal clot retraction, impaired platelet aggregation induced by most physiological agonists (ADP, epinephrine, and collagen) except ristocetin, mucosal bleeding, easy bruising, epistaxis, as well as normal prothrombin/activated partial thromboplastin time, and normal platelet count. (This is among inclusion criteria for this study)

      CasePreviousTesting: To identify the underlying molecular mechanism of GPIIb/IIIa complex abnormalities among probands in this study, all the 30 exons of ITGA2B and the 15 exons of ITGB3 were analyzed using PCR–CSGE and DNA sequencing.

      Gene: ITGB3

      Variant: NM_000212.2:c.1185del

      LegacyVariant: N/A

      ClinVar: N/A

      CAiD: CA915940263

      gnomAD: N/A

    2. patient 8.

      Case4: Patient 8, Female, 21 years old

      DiseaseAssertion: Glanzmann thrombasthenia type I (Diagnosed at 5 months old)

      FamilyInfo: N/A

      ParentalGenotype: N/A

      CasePresentingHPOs: N/A

      CaseHPOFreeText: Bleeding phenotypes are not specified per patient in this article, rather, it states: "Petechia, epistaxis, and prolonged bleeding after trauma were the most common symptoms among studied patients"

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: This patient has type 1 Glanzmann thrombasthenia; therefore, according to this article, this proband had between 0-5% of normal levels of surface GPIIb/IIIa expression.

      PlateletAggregation: Prolonged bleeding time, abnormal clot retraction, impaired platelet aggregation induced by most physiological agonists (ADP, epinephrine, and collagen) except ristocetin, mucosal bleeding, easy bruising, epistaxis, as well as normal prothrombin/activated partial thromboplastin time, and normal platelet count. (This is among inclusion criteria for this study)

      CasePreviousTesting: To identify the underlying molecular mechanism of GPIIb/IIIa complex abnormalities among probands in this study, all the 30 exons of ITGA2B and the 15 exons of ITGB3 were analyzed using PCR–CSGE and DNA sequencing.

      Gene: ITGB3

      Variant: NM_000212.2:c.1986dup (p.Asp663Ter)

      LegacyVariant: N/A

      ClinVar: N/A

      CAiD: CA915940608

      gnomAD: N/A

    3. A gastrointestinal patient

      Case1: Male, 6 years old, ethnicity not specified

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo:

      ParentalGenotype: "No platelet sample from the patient's mother and father were available"

      CasePresentingHPOs: N/A

      CaseHPOFreeText: Mild spontaneous mucocutaneous bleeding

      CaseNotHPOs: N/A

      ProteinExpression: Assessment of surface expression of αIIBβ3 D217 and αIIBβ3 V217 by flow cytometry was performed. αIIb and β3 were expressed at normal levels.

      Platelet Aggregation: Absence of platelet aggregation in response to agonists such as ADP, epinephrine, or collagen and a normal response to ristocetin

      CasePreviousTesting: Sequencing of αIIb and β3 genes revealed a homozygous missense A>T point mutation in the β3 gene leading to a D217Val substitution.

      Gene: ITGB3

      Variant: NM_000212.2:c.728A>T (p.Asp243Val)

      LegacyVariant: (p.Asp217Val)

      ClinVar: N/A

      CAiD: CA400023604

      gnomAD N/A

    1. 10

      Case10: Male, Iraq, age not specified

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: Table 1 mentions family history available for the proband, however no specific details about family provided in paper

      ParentalGenotype: N/A

      CasePresentingHPOs: HP:0000421, HP:0000225, HP:0031364, HP:0030137, HP:0002239, HP:0002573

      (Epistaxis, gingival bleeding, ecchymosis, prolonged bleeding following circumcision, gastrointestinal bleeding, rectal bleeding)

      CaseHPOFreeText: Haematuria

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: N/A

      PlateletAggregation: N/A

      CasePreviousTesting: N/A

      Gene: ITGB3

      Variant: NM_000212.2:c.2031_2041del (p.Asp677Glufs)

      LegacyVariant: (p.Asp651Glufs*3)

      ClinVar: N/A

      CAiD: CA915940605

      gnomAD: N/A

    2. 12

      Case12: Female, Iraq, age not specified

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: Table 1 mentions family history available for the proband, however no specific details about family provided in paper

      ParentalGenotype: N/A

      CasePresentingHPOs: HP:0000421, HP:0000225, HP:0000132, HP:0031364, HP:0002249

      (Epistaxis, gingival bleeding, menorrhagia, ecchymosis, melena)

      CaseHPOFreeText: Retroperitoneal, haematuria

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: N/A

      PlateletAggregation: N/A

      CasePreviousTesting: N/A

      Gene: ITGB3

      Variant: NM_000212.2:c.2031_2041del (p.Asp677Glufs)

      LegacyVariant: (p.Asp651Glufs*3)

      ClinVar: N/A

      CAiD: CA915940605

      gnomAD: N/A

    3. 8

      Case8: Male, Iraq, age not specified

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: Table 1 mentions family history available for the proband, however no specific details about family provided in paper

      ParentalGenotype: N/A

      CasePresentingHPOs: HP:0000421, HP:0000225, HP:0031364, HP:0030137, HP:0002573

      (Epistaxis, gingival bleeding, ecchymosis, prolonged bleeding following circumcision, rectal bleeding)

      CaseHPOFreeText: Haemarthrosis, retro-peritoneal bleeding

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: N/A

      PlateletAggregation: N/A

      CasePreviousTesting: N/A

      Gene: ITGB3

      Variant: NM_000212.2:c.2031_2041del (p.Asp677Glufs)

      LegacyVariant: (p.Asp651Glufs*3)

      ClinVar: N/A

      CAiD: CA915940605

      gnomAD: N/A

    4. 11

      Case11: Female, Iraq, age not specified

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: Table 1 mentions family history available for the proband, however no specific details about family provided in paper

      ParentalGenotype: N/A

      CasePresentingHPOs: HP:0000421, HP:0000225, HP:0000132, HP:0031364, HP:0002249

      (Epistaxis, gingival bleeding, menorrhagia, ecchymosis, melena)

      CaseHPOFreeText: Colon angiodysplasia, retroperitoneal, haematuria, haemarthrosis

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: N/A

      PlateletAggregation: N/A

      CasePreviousTesting: N/A

      Gene: ITGB3

      Variant: NM_000212.2:c.2031_2041del (p.Asp677Glufs)

      LegacyVariant: (p.Asp651Glufs*3)

      ClinVar: N/A

      CAiD: CA915940605

      gnomAD: N/A

    5. 1

      Case1: Male, Iraq, age not specified

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: Table 1 mentions family history available for the proband, however no specific details about family provided in paper

      ParentalGenotype: N/A

      CasePresentingHPOs: HP:0000421, HP:0000225, HP:0031364

      (Epistaxis, gingival bleeding, ecchymosis)

      CaseHPOFreeText: N/A

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: N/A

      PlateletAggregation: N/A

      CasePreviousTesting: N/A

      Gene: ITGB3

      Variant: NM_000212.2:c.2031_2041del (p.Asp677Glufs)

      LegacyVariant: (p.Asp651Glufs*3)

      ClinVar: N/A

      CAiD: CA915940605

      gnomAD: N/A

    6. haematuria21

      Case21: Male, Iraq, age not specified

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: Table 1 mentions family history available for the proband, however no specific details about family provided in paper

      ParentalGenotype: N/A

      CasePresentingHPOs: N/A

      CaseHPOFreeText: N/A

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: N/A

      PlateletAggregation: N/A

      CasePreviousTesting: N/A

      Gene: ITGB3

      Variant: NM_000212.2:c.2031_2041del (p.Asp677Glufs)

      LegacyVariant: (p.Asp651Glufs*3)

      ClinVar: N/A

      CAiD: CA915940605

      gnomAD: N/A

    1. Recombinant Factor VIIa Is Effective for Bleeding and Surgery in Patients With Glanzmann Thrombasthenia

      PMID: 10572113

      Gene: ITGA2B and/or ITGB3

      HGNC: 6138 and 6156

      InsufficientEvidence: This article mentions Glanzmann thrombasthenia patients; however, there is no mention of variants in ITGA2B and/or ITGB3 within these patients; therefore, there is insufficient evidence

  2. watermark.silverchair.com watermark.silverchair.com
    1. Therefore, we wondered whether DTT could expose the fibrinogen binding site on platelets isolated from a patient with GTV. The all& on the platelets of this patient have an Arg + Trp mutation at position 214 of P3, and the platelets fail to aggregate or to bind fibrinogen in response to physiologic agonists despite sufficient surface expression of the complex."

      Case1: (M.S) Female, 19 years old, Caucasian

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: N/A

      ParentalGenotype: The mutation has been inherited from proband's parents who are heterozygous for the same mutation the proband has.

      CasePresentingHPOs: HP:0000978 (Bruising)

      CaseHPOFreeText: Intracerebral hematoma

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: See Fig 4 for flow cytometry analysis of protein expression

      PlateletAggregation: Absence of platelet aggregation in response to all agonists tested i.e. ADP, collagen, platelet activating factor acether thrombin, and arachidonic acid; however, ristocetin induced platelet aggregation was normal

      CasePreviousTesting: Sequenced patient's GPIIIa exons encompasing a highlight conserved reion of GPIIIa.

      Gene: ITGB3

      Variant: NM_000212.2:c.718C>T (p.Arg240Trp)

      LegacyVariant: (p.Arg214Trp)

      ClinVar: 13555

      CAiD: CA123228

      gnomAD: MAF in the East Asian population is 0.00005437 http://gnomad.broadinstitute.org/variant/17-45363729-C-T

      PreviouslyPublished: PMID: 1602006

    1. Case22: Patient DOM, gender and age are not specified, all of these patients are Caucasian (either Italian or European)

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: N/A

      ParentalGenotype: N/A

      CasePresentingHPOs: N/A

      CaseHPOFreeText: All patients presented with a current or past history of bleeding and a bleeding time >15 min. Bleeding symptoms were evaluated by examining available hospital records. Mild bleeders were defined as those who bled only after trauma or surgery or had minor symptoms, such as epistaxis. Moderate/severe bleeders were defined as those with a history of spontaneous or life threatening hemorrhages, such as gastrointestinal bleeding, or who had repeated episodes requiring platelet transfusions

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: See Table 1

      PlateletAggregation: See Table 1

      CasePreviousTesting: To identify point mutations responsible for GT, we have sequenced all coding regions of Ib and 3 genes and intron/exon boundaries.

      Gene: ITGA2B

      Variant: NM_000212.2:c.1801T>C

      LegacyVariant: N/A

      ClinVar: N/A

      CAiD: CA8623361

      gnomAD: MAF in the European non Finnish population is 0.00001758 https://gnomad.broadinstitute.org/variant/17-45376784-T-C

    1. GT-17

      Case15: (GT-17) Female, age or ethnicity not specified

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: Probands GT15-GT20 are related to GT-17 see Table 1

      ParentalGenotype: Parents may be included in Table 1; however, not specified so no information

      CasePresentingHPOs: N/A

      CaseHPOFreeText: Bleeding severity: Severe (See Supplementary Table 3)

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: Flow cytometry performed and CD41 and CD61 were observed (See Supplementary Table 3)

      PlateletAggregation: Minimal information (See Supplementary Table 3)

      CasePreviousTesting: DNA was extracted from peripheral blood samples from patients and family members, and Sanger sequencing and PCR was performed. Samples were processed for targeted sequencing using the available SHGp heme panel of 393 genes.

      Gene: ITGB3

      Variant: NM_000212.2:c.727G>C (p.Asp243His)

      LegacyVariant: N/A

      ClinVar: N/A

      CAiD: CA400023600

      gnomAD: N/A

    2. GT-49

      Case39: (GT-49) Female, age or ethnicity not specified

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: Proband GT49-GT52 are related

      ParentalGenotype: N/A

      CasePresentingHPOs: N/A

      CaseHPOFreeText: Bleeding severity: Information not available (See Supplementary Table 3)

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: Flow cytometry performed and CD41 and CD61 were observed (See Supplementary Table 3)

      PlateletAggregation: Minimal information (See Supplementary Table 3)

      CasePreviousTesting: DNA was extracted from peripheral blood samples from patients and family members, and Sanger sequencing and PCR was performed. Samples were processed for targeted sequencing using the available SHGp heme panel of 393 genes.

      Gene: ITGB3

      Variant: NM_000212.2:c.2113del (p.Leu705Cysfs*4)

      LegacyVariant: N/A

      ClinVar: N/A

      CAiD: CA8623443

      gnomAD: MAF in East Asian population: 0.0001087 http://gnomad.broadinstitute.org/variant/17-45380183-TC-T

    3. GT-15

      Case13: (GT-15) Male, carrier, age or ethnicity not specified

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: Probands GT16-GT20 are related to GT-15 see Table 1

      ParentalGenotype: Parents may be included in Table 1; however, not specified so no information

      CasePresentingHPOs: N/A

      CaseHPOFreeText: Bleeding severity: Mild (See Supplementary Table 3)

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: Flow cytometry performed and CD41 and CD61 were observed (See Supplementary Table 3)

      PlateletAggregation: Minimal information (See Supplementary Table 3)

      CasePreviousTesting: DNA was extracted from peripheral blood samples from patients and family members, and Sanger sequencing and PCR was performed. Samples were processed for targeted sequencing using the available SHGp heme panel of 393 genes.

      Gene: ITGB3

      Variant: NM_000212.2:c.727G>C (p.Asp243His)

      LegacyVariant: N/A

      ClinVar: N/A

      CAiD: CA400023600

      gnomAD: N/A

    4. GT-31

      Case26: (GT-31) Female, age or ethnicity not specified

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: Proband GT31-GT34 are related to GT31

      ParentalGenotype: N/A

      CasePresentingHPOs: N/A

      CaseHPOFreeText: Bleeding severity: Information not available for this proband (See Supplementary Table 3)

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: Flow cytometry performed and CD41 and CD61 were observed (See Supplementary Table 3)

      PlateletAggregation: Minimal information (See Supplementary Table 3)

      CasePreviousTesting: DNA was extracted from peripheral blood samples from patients and family members, and Sanger sequencing and PCR was performed. Samples were processed for targeted sequencing using the available SHGp heme panel of 393 genes.

      Gene: ITGB3

      Variant: NM_000212.2:c.2113del (p.Leu705Cysfs*4)

      LegacyVariant: N/A

      ClinVar: N/A

      CAiD: CA8623443

      gnomAD: MAF in the East Asian population is 0.0001087 http://gnomad.broadinstitute.org/variant/17-45380183-TC-T

    5. GT-57

      Case46: (GT-57) Male, age or ethnicity not specified

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: N/A

      ParentalGenotype: N/A

      CasePresentingHPOs: N/A

      CaseHPOFreeText: Bleeding severity: Information not available (See Supplementary Table 3)

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: Flow cytometry performed and CD41 and CD61 were observed (See Supplementary Table 3)

      PlateletAggregation: Minimal information (See Supplementary Table 3)

      CasePreviousTesting: DNA was extracted from peripheral blood samples from patients and family members, and Sanger sequencing and PCR was performed. Samples were processed for targeted sequencing using the available SHGp heme panel of 393 genes.

      Gene: ITGB3

      Variant: NM_000212.2:c.2113del (p.Leu705Cysfs*4)

      LegacyVariant: N/A

      ClinVar: N/A

      CAiD: CA8623443

      gnomAD: MAF in East Asian population: 0.0001087 http://gnomad.broadinstitute.org/variant/17-45380183-TC-T

    6. GT-33

      Case28: (GT-33) Female, age or ethnicity not specified

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: Proband GT31-GT34 are related

      ParentalGenotype: N/A

      CasePresentingHPOs: N/A

      CaseHPOFreeText: Bleeding severity: Moderate (See Supplementary Table 3)

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: Flow cytometry performed and CD41 and CD61 were observed (See Supplementary Table 3)

      PlateletAggregation: Minimal information (See Supplementary Table 3)

      CasePreviousTesting: DNA was extracted from peripheral blood samples from patients and family members, and Sanger sequencing and PCR was performed. Samples were processed for targeted sequencing using the available SHGp heme panel of 393 genes.

      Gene: ITGB3

      Variant: NM_000212.2:c.2113del (p.Leu705Cysfs*4)

      LegacyVariant: N/A

      ClinVar: N/A

      CAiD: CA8623443

      gnomAD: MAF in the East Asian population is 0.0001087 http://gnomad.broadinstitute.org/variant/17-45380183-TC-T

    7. GT-74

      Case55: (GT-74) Gender, age, or ethnicity not specified

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: N/A

      ParentalGenotype: N/A

      CasePresentingHPOs: N/A

      CaseHPOFreeText: Bleeding severity: Information not given (See Supplementary Table 3)

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: Flow cytometry performed and CD41 and CD61 were observed (See Supplementary Table 3)

      PlateletAggregation: Minimal information (See Supplementary Table 3)

      CasePreviousTesting: DNA was extracted from peripheral blood samples from patients and family members, and Sanger sequencing and PCR was performed. Samples were processed for targeted sequencing using the available SHGp heme panel of 393 genes.

      Gene: ITGB3

      Variant: NM_000212.2:c.985A>G (p.Asn329Asp)

      LegacyVariant: N/A

      ClinVar: 323865

      CAiD: CA8623107

      gnomAD: MAF in Other population 0.0005534 http://gnomad.broadinstitute.org/variant/17-45367092-A-G

    8. GT-55

      Case44: (GT-54) Male, age or ethnicity not specified

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: N/A

      ParentalGenotype: N/A

      CasePresentingHPOs: N/A

      CaseHPOFreeText: Bleeding severity: Moderate (See Supplementary Table 3)

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: Flow cytometry performed and CD41 and CD61 were observed (See Supplementary Table 3)

      PlateletAggregation: Minimal information (See Supplementary Table 3)

      CasePreviousTesting: DNA was extracted from peripheral blood samples from patients and family members, and Sanger sequencing and PCR was performed. Samples were processed for targeted sequencing using the available SHGp heme panel of 393 genes.

      Gene: ITGB3

      Variant: NM_000212.2:c.2113del (p.Leu705Cysfs*4)

      LegacyVariant: N/A

      ClinVar: N/A

      CAiD: CA8623443

      gnomAD: MAF in East Asian population: 0.0001087 http://gnomad.broadinstitute.org/variant/17-45380183-TC-T

    9. GT-73c

      Case54: (GT-73) Gender, age, or ethnicity not specified

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: N/A

      ParentalGenotype: N/A

      CasePresentingHPOs: N/A

      CaseHPOFreeText: Bleeding severity: Information not given (See Supplementary Table 3)

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: Flow cytometry performed and CD41 and CD61 were observed (See Supplementary Table 3)

      PlateletAggregation: Minimal information (See Supplementary Table 3)

      CasePreviousTesting: DNA was extracted from peripheral blood samples from patients and family members, and Sanger sequencing and PCR was performed. Samples were processed for targeted sequencing using the available SHGp heme panel of 393 genes.

      Gene: ITGB3

      Variant: NM_000212.2:c.985A>G (p.Asn329Asp)

      LegacyVariant: N/A

      ClinVar: 323865

      CAiD: CA8623107

      gnomAD: MAF in Other population 0.0005534 http://gnomad.broadinstitute.org/variant/17-45367092-A-G

    10. GT-32

      Case27: (GT-32) Female, age or ethnicity not specified

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: Proband GT31-GT34 are related

      ParentalGenotype: N/A

      CasePresentingHPOs: N/A

      CaseHPOFreeText: Bleeding severity: Moderate (See Supplementary Table 3)

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: Flow cytometry performed and CD41 and CD61 were observed (See Supplementary Table 3)

      PlateletAggregation: Minimal information (See Supplementary Table 3)

      CasePreviousTesting: DNA was extracted from peripheral blood samples from patients and family members, and Sanger sequencing and PCR was performed. Samples were processed for targeted sequencing using the available SHGp heme panel of 393 genes.

      Gene: ITGB3

      Variant: NM_000212.2:c.2113del (p.Leu705Cysfs*4)

      LegacyVariant: N/A

      ClinVar: N/A

      CAiD: CA8623443

      gnomAD: MAF in the East Asian population is 0.0001087 http://gnomad.broadinstitute.org/variant/17-45380183-TC-T

    11. GT-21

      Case19: (GT-21) Male, age or ethnicity not specified

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: Proband GT-22 is related to GT-21 see Table 1

      ParentalGenotype: Parents may be included in Table 1; however, not specified so no information

      CasePresentingHPOs: N/A

      CaseHPOFreeText: Bleeding severity: Moderate (See Supplementary Table 3)

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: Flow cytometry performed and CD41 and CD61 were observed (See Supplementary Table 3)

      PlateletAggregation: Minimal information (See Supplementary Table 3)

      CasePreviousTesting: DNA was extracted from peripheral blood samples from patients and family members, and Sanger sequencing and PCR was performed. Samples were processed for targeted sequencing using the available SHGp heme panel of 393 genes.

      Gene: ITGB3

      Variant: NM_000212.2:c.2302-1G>A

      LegacyVariant: N/A

      ClinVar: N/A

      CAiD: CA400034626

      gnomAD: N/A

    1. β3-integrin–deficient mice are a model for Glanzmann thrombasthenia showing placental defects and reduced survival

      PMID: 9916135

      Gene: ITGA2B and/or ITGB3

      NoEvidence: This article does not mention GT patients with variants in ITGA2B and/or ITBG3; therefore there is no evidence. Researchers in this study generated a strain of B3 null mice, these mice will allow analysis of other suggested functions of B3 integrins.

    1. Supplementary Table S1 & S2 Proband and Variant Information:

      Case4: GT5, Male, 7, French

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: 1 brother, that is all Supp table S1 states

      ParentalGenotype: N/A

      CasePresentingHPOs: HP:0000421, HP:0000978, HP:0002138

      (Epistaxis, easy bruising, subararachnoid hemorrhoid)

      CaseHPOFreeText: Post-traumatic bleeding

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: N/A

      PlateletAggregation: Absent platelet aggregation (See Supplementary Table 1)

      CasePreviousTesting: Sanger sequencing of ITGA2B and ITGB3

      Gene: ITGB3

      Variant: NM_000212.2:c.565C>T (p.Pro189Ser) and NM_000212.2:c.2113del (p.Leu705Cysfs*4)

      LegacyVariant: N/A

      ClinVar: N/A

      CAiD: CA291224669 and CA8623443

      gnomAD: MAF in the European (non-Finnish) population is 0.00002638 http://gnomad.broadinstitute.org/variant/17-45362012-C-T and MAF in the East Asian population is 0.0001087 http://gnomad.broadinstitute.org/variant/17-45380183-TC-T

    2. Supplementary Table S1 & S2 Proband and Variant Information:

      Case2: GT3, Female, 32, French

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: N/A

      ParentalGenotype: N/A

      CasePresentingHPOs: HP:0000421, HP:0031364, HP:0000979, HP:0002239

      (Epistaxis, ecchymosis, purpura, GI bleeding,)

      CaseHPOFreeText: Excessive menstrual bleeding, proband sometimes hospitalized with severe symptoms

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: Flow cytometry showed <5% expression of αIIbβ3 (See Supplementary Table 1)

      PlateletAggregation: Absent platelet aggregation (See Supplementary Table 1)

      CasePreviousTesting: Sanger sequencing of ITGA2B and ITGB3

      Gene: ITGB3

      Variant: NM_000212.2:c.353T>A, NM_000212.2:c.709_710del, NM_000212.2:c.1732G>A

      LegacyVariant: N/A

      ClinVar: N/A

      CAiD: CA291224511, CA8623029 and CA8623343

      gnomAD: MAF in the European non Finnish populationis 0.00001796 http://gnomad.broadinstitute.org/variant/17-45363717-CAG-C and MAF in the Other popualation is 0.0008149 http://gnomad.broadinstitute.org/variant/17-45376715-G-A

    3. Supplementary Table S1 & S2 Proband and Variant Information:

      Case36: GT38, Female, 9 years old, Swiss

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: N/A

      ParentalGenotype: N/A

      CasePresentingHPOs: HP:0000967, HP:0000978, HP:0002239

      (Petechiae, easy bruising, GI bleeding)

      CaseHPOFreeText: N/A

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: Flow cytometry showed <5% expression of αIIbβ3 (See Supplementary Table 1)

      PlateletAggregation: Absent platelet aggregation (See Supplementary Table 1)

      CasePreviousTesting: Sanger sequencing of ITGA2B and ITGB3

      Gene: ITGB3

      Variant: NM_000212.2:c.79+1G>A and NM_000212.2:c.940-2A>G

      LegacyVariant: N/A

      ClinVar: N/A

      CAiD: CA400028478 and CA400025605

      gnomAD: N/A

    4. Supplementary Table S1 & S2 Proband and Variant Information:

      Case8: GT9, Male, 86, French

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: N/A

      ParentalGenotype: N/A

      CasePresentingHPOs: HP:0000421

      (Epistaxis)

      CaseHPOFreeText: Moderate mucocutaneous bleeding

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: Flow cytometry showed 10-20% expression of αIIbβ3 (See Supplementary Table 1)

      PlateletAggregation: Absent platelet aggregation (See Supplementary Table 1)

      CasePreviousTesting: Sanger sequencing of ITGA2B and ITGB3

      Gene: ITGB3

      Variant: NM_000212.2:c.665T>C (p.Leu222Pro) and NM_000212.2:c.1871G>A (p.Cys624Tyr)

      LegacyVariant: N/A

      ClinVar: N/A

      CAiD: CA291224887 and CA400032726

      gnomAD: MAF in the European (non-Finnish) population 0.00006482 http://gnomad.broadinstitute.org/variant/17-45363676-T-C

    5. Supplementary Table S1 & S2 Proband and Variant Information:

      Case26: GT30, Female, age not specified, Caucasian

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: Affected brother (See Supplementary Table 1)

      ParentalGenotype: N/A

      CasePresentingHPOs:

      (Epistaxis, GI bleeding)

      CaseHPOFreeText: Diffuse bruising mainly with trauma

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: Flow cytometry showed 5-10% expression of αIIbβ3 (See Supplementary Table 1)

      PlateletAggregation: Absent platelet aggregation (See Supplementary Table 1)

      CasePreviousTesting: Sanger sequencing of ITGA2B and ITGB3

      Gene: ITGB3

      Variant: NM_000212.2:c.777+1G>A

      LegacyVariant: N/A

      ClinVar: N/A

      CAiD: CA8623036

      gnomAD: MAF in the Latino population is 0.0006774 http://gnomad.broadinstitute.org/variant/17-45363789-G-A

    6. Supplementary Table S1 & S2 Proband and Variant Information:

      Case28: GT33a, Male, age not specified, USA/Laos

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: Affected sister who is proband 33b in this article

      ParentalGenotype: N/A

      CasePresentingHPOs: HP:0000421, HP:0002239

      (Epistaxis, GI bleeding)

      CaseHPOFreeText: Life-threatening bleeding at onset of menses

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: Flow cytometry showed <5% expression of αIIbβ3 (See Supplementary Table 1)

      PlateletAggregation: Absent platelet aggregation (See Supplementary Table 1)

      CasePreviousTesting: Sanger sequencing of ITGA2B and ITGB3

      Gene: ITGB3

      Variant: NM_000212.2:c.262C>T (p.Arg88Ter) and NM_000212.2:c.2113del (p.Leu705Cysfs*4)

      LegacyVariant: N/A

      ClinVar: N/A

      CAiD: CA400020703 and CA8623443

      gnomAD: MAF in the Other population is 0.0001385 http://gnomad.broadinstitute.org/variant/17-45360816-C-T and MAF in the East Asian population is 0.0001087 http://gnomad.broadinstitute.org/variant/17-45380183-TC-T

    1. GT-7

      Case7: GT-7, gender, age, ethnicity not specified

      DiseaseAssertion: Glanzmann thrombasthenia type II

      FamilyInfo: N/A

      ParentalGenotype: Segregation analysis confirmed the presence of heterozygous mutations in carrier parents

      CasePresentingHPOs: N/A

      CaseHPOFreeText: Article mentions patients presented with variable bleeding diathesis and Table 1 shows the several phenotypes that were seen among the cohort of 13 patients in this study (this article does not state a specific bleeding phenotype for each proband) "Most of the patients had gross blood loss due to epistaxis (54%), cutaneous bleeding (58%) and menorrhagia (100% of women), while other common symptoms (oral cavity, gastrointestinal, following dental extraction or mild injuries, postpartum, or hematomas) were in general milder."

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: Flow cytometry showed αIIbβ3 expression to be between 5% and 20%

      PlateletAggregation: Article mentions the disorder was indentified by platelet testing consisting in severely impaired aggregation in response to all physiological agonists and also TMA (See Table 4). Ristocetin-induced platelet aggregation was normal or reduced to some extent.

      CasePreviousTesting: To detect mutations in ITGA2B or ITGB3, total RNA from peripheral blood was used for cDNA synthesis for RT-PCR. Using specific oligonucleotides and conditions, they amplified and sequenced ITGA2B and ITGB3 by Sanger sequencing, and every mutation found in cDNA was confirmed on DNA samples

      Gene: ITGB3

      Variant: NM_000212.2:c.431T>G (p.Met144Arg)

      LegacyVariant: (p.Met118Arg)

      ClinVar: N/A

      CAiD: CA291224645

      gnomAD: N/A

    2. GT-4

      Case4: GT-4, gender, age, ethnicity not specified

      DiseaseAssertion: Glanzmann thrombasthenia type I

      FamilyInfo: N/A

      ParentalGenotype: Segregation analysis confirmed the presence of heterozygous mutations in carrier parents

      CasePresentingHPOs: N/A

      CaseHPOFreeText: Article mentions patients presented with variable bleeding diathesis and Table 1 shows the several phenotypes that were seen among the cohort of 13 patients in this study (this article does not state a specific bleeding phenotype for each proband) "Most of the patients had gross blood loss due to epistaxis (54%), cutaneous bleeding (58%) and menorrhagia (100% of women), while other common symptoms (oral cavity, gastrointestinal, following dental extraction or mild injuries, postpartum, or hematomas) were in general milder."

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: Flow cytometry showed αIIbβ3 expression to be <5%

      PlateletAggregation: Article mentions the disorder was indentified by platelet testing consisting in severely impaired aggregation in response to all physiological agonists and also TMA (See Table 4). Ristocetin-induced platelet aggregation was normal or reduced to some extent.

      CasePreviousTesting: To detect mutations in ITGA2B or ITGB3, total RNA from peripheral blood was used for cDNA synthesis for RT-PCR. Using specific oligonucleotides and conditions, they amplified and sequenced ITGA2B and ITGB3 by Sanger sequencing, and every mutation found in cDNA was confirmed on DNA samples

      Gene: ITGB3

      Variant: M_000212.2:c.647A>G (p.Tyr216Cys)

      LegacyVariant: (p.Tyr190Cys)

      ClinVar: N/A

      CAiD: CA400023432

      gnomAD: N/A

    3. GT-1

      Case1: GT-1, gender, age, ethnicity not specified

      DiseaseAssertion: Glanzmann thrombasthenia type II

      FamilyInfo: N/A

      ParentalGenotype: Segregation analysis confirmed the presence of heterozygous mutations in carrier parents

      CasePresentingHPOs: N/A

      CaseHPOFreeText: Article mentions patients presented with variable bleeding diathesis and Table 1 shows the several phenotypes that were seen among the cohort of 13 patients in this study (this article does not state a specific bleeding phenotype for each proband) "Most of the patients had gross blood loss due to epistaxis (54%), cutaneous bleeding (58%) and menorrhagia (100% of women), while other common symptoms (oral cavity, gastrointestinal, following dental extraction or mild injuries, postpartum, or hematomas) were in general milder."

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: Flow cytometry revealed αIIbβ3 expression between 5% and 20%

      PlateletAggregation: Article mentions the disorder was indentified by platelet testing consisting in severely impaired aggregation in response to all physiological agonists and also TMA (See Table 4). Ristocetin-induced platelet aggregation was normal or reduced to some extent.

      CasePreviousTesting: To detect mutations in ITGA2B or ITGB3, total RNA from peripheral blood was used for cDNA synthesis for RT-PCR. Using specific oligonucleotides and conditions, they amplified and sequenced ITGA2B and ITGB3 by Sanger sequencing, and every mutation found in cDNA was confirmed on DNA samples

      Gene: ITGB3

      Variant: NM_000212.2:c.448A>G (p.Met150Val) and NM_000212.2:c.774_775del (p.Cys258Ter)

      LegacyVariant: (p.Met124Val)

      ClinVar: N/A

      CAiD: CA8622961 and CA915940285

      gnomAD: MAF in South Asian population is 0.00003266 http://gnomad.broadinstitute.org/variant/17-45361895-A-G

      PreviouslyPublished PMID: 15583747 (p.Met124Val)

    4. Table 3 Molecular Diagnosis of Patients with Glanzmann Thrombasthenia:

      Case4: GT-4, age, gender, ethnicity not specified

      DiseaseAssertion: Glanzmann thrombasthenia type I

      FamilyInfo: N/A

      ParentalGenotype: N/A

      CasePresentingHPOs: N/A

      CaseHPOFreeText: Patients presented with a variable bleeding diathesis; most patients had epistaxis (54%), cutaneous bleeding (58%), and menorrhagia (100% of women) while other common symptoms (oral cavity, GI, following dental extraction of mild injuries, postpartum, or hematomas) were in general milder. There is no specific phenotypes attached to probands in this paper.

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: Flow cytometry showed that αIIbβ3 expression was less than 5%

      PlateletAggregation: There was severely impaired aggregation in response to all physiological agonists, and ristocetin induced platelet agglutination was normal or reduced to some extent.

      CasePreviousTesting: Total RNA from peripheral blood was used for cDNA synthesis for RT-PCR. Then, using specific oligonucleotides and conditions, they amplified and sequenced ITGA2B and ITGB3 by Sanger sequencing. Every mutation found in cDNA was confirmed in DNA samples.

      Gene: ITGB3

      Variant: NM_000212.2:c.569A>G (p.Tyr190Cys)

      LegacyVariant: N/A

      ClinVar: N/A

      CAiD: CA400023236

      gnomAD: N/A

    1. Recombinant factor VIIa restores aggregation of αIIbβ3-deficient platelets via tissue factor–independent fibrin generation

      PMID: 14592825

      Gene: ITGA2B and/or ITGB3

      HGNC: 6138 and 6156

      NoEvidence: This article does not mention GT patients with variants in ITGA2B and/or ITGB3; therefore, there is no evidence

      In this particular study, the effect of rFVIIa on the aggregation of αIIbβ3-deficient platelets was investigated in a system consisting of isolated platelets and purified coagulation factors.

    1. 6

      Case6: No assertion made on age, gender or ethnicity

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: N/A

      ParentalGenotype: The identified variants were heterozygote in parents.

      CasePresentingHPOs: HP:0005542, HP:0000132, HP:0000421, HP:0000979

      (Prolonged clotting, menorrhagia, epistaxis, purpura)

      CaseHPOFreeText: Bleeding time of 17 minutes, upper GI bleeding

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: N/A

      CasePreviousTesting: Genetic study of patient was conducted using direct sequencing of entire coding and exon-intron boundaries of the ITGA2B and ITGB3 genes.

      Gene: ITGB3

      Variant: NM_000212.2:c.1990G>T (p.1990G>T)

      LegacyVariant: N/A

      ClinVar: N/A

      CAiD: CA400033003

      gnomAD: N/A

    2. 2

      Case2: No assertion made on age, gender or ethnicity

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: Table 1 states family history is available.

      ParentalGenotype: The identified variants were heterozygote in parents and were not present as homozygote in their healthy members of the family as expected in cases where mutations are deleterious.

      CasePresentingHPOs: N/A

      CaseHPOFreeText: Bleeding time is greater than 20 minutes and prolonged clotting time

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: N/A

      CasePreviousTesting: Genetic study of patient was conducted using direct sequencing of entire coding and exon-intron boundaries of the ITGA2B and ITGB3 genes.

      Gene: ITGB3

      Variant: NM_000212.2:c.1658_1660del (p.Ser553del)

      LegacyVariant: N/A

      ClinVar: N/A

      CAiD: CA626684826 (p.Ser553del)

      gnomAD: MAF in Latino population: 0.0001158 https://gnomad.broadinstitute.org/variant/17-45369899-TCTC-T

    1. Supplementary Table S1:

      Case4: GT5, French, age and ethnicity not specified

      DiseaseAssertion: Glanzmann thrombasthenia type I

      FamilyInfo: N/A

      ParentalGenotype: N/A

      CasePresentingHPOs: N/A

      CaseHPOFreeText: All patients had a life-long history of mucocutaneous bleeding

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: All patients in this study met the clinical and platelet function requirements for GT-- this includes an absent or strongly reduced expression of alphaIIbBeta3 in platelets

      PlateletAggregation: All patients in this study met the clinical and platelet function requirements for GT-- this includes absent or severely reduced platelet aggregation with at least three physiological agonists

      CasePreviousTesting: Sanger sequencing was performed. Sanger sequencing ensured coverage of all exons and splice sties of the ITGA2B and ITGB3 genes and extended 300-500 bp into the introns as well as including the UTR. They sequenced 416 bp upstream of the ITGA2B promoter and 463 bp upstream of the ITGB3 promoter. In total they sequenced 51.2% of the ITGA2B gene and 19.4% of the larger ITGB3 gene

      Gene: ITGB3

      Variant: NM_000212.2:c.565C>T (p.Pro189Ser) and NM_000212.2:c.2113del (p.Leu705Cysfs*4)

      LegacyVariant: N/A

      ClinVar: N/A

      CAiD: CA291224669 and CA8623443

      gnomAD: MAF in the European (non-Finnish) population is 0.00002638 https://gnomad.broadinstitute.org/variant/17-45362012-C-T and MAF in the East Asian population is 0.0001087 https://gnomad.broadinstitute.org/variant/17-45380183-TC-T

    2. Supplementary Table S1:

      Case20: GT23, French, gender and age are not specified

      DiseaseAssertion: Glanzmann thrombasthenia type I

      FamilyInfo: N/A

      ParentalGenotype: N/A

      CasePresentingHPOs: N/A

      CaseHPOFreeText: All patients had a life-long history of mucocutaneous bleeding

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: All patients in this study met the clinical and platelet function requirements for GT-- this includes an absent or strongly reduced expression of alphaIIbBeta3 in platelets

      PlateletAggregation: All patients in this study met the clinical and platelet function requirements for GT-- this includes absent or severely reduced platelet aggregation with at least three physiological agonists

      CasePreviousTesting: Sanger sequencing was performed. Sanger sequencing ensured coverage of all exons and splice sties of the ITGA2B and ITGB3 genes and extended 300-500 bp into the introns as well as including the UTR. They sequenced 416 bp upstream of the ITGA2B promoter and 463 bp upstream of the ITGB3 promoter. In total they sequenced 51.2% of the ITGA2B gene and 19.4% of the larger ITGB3 gene

      Gene: ITGB3

      Variant: NM_000212.2:c.1031A>C (p.Tyr344Ser)

      LegacyVariant: N/A

      ClinVar: N/A

      CAiD: CA400025814

      gnomAD: N/A

    3. Supplementary Table S1:

      Case52: GT61, French/Italian, gender and age are not specified

      DiseaseAssertion: Glanzmann thrombasthenia type I

      FamilyInfo: N/A

      ParentalGenotype: N/A

      CasePresentingHPOs: N/A

      CaseHPOFreeText: All patients had a life-long history of mucocutaneous bleeding

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: All patients in this study met the clinical and platelet function requirements for GT-- this includes an absent or strongly reduced expression of alphaIIbBeta3 in platelets

      PlateletAggregation: All patients in this study met the clinical and platelet function requirements for GT-- this includes absent or severely reduced platelet aggregation with at least three physiological agonists

      CasePreviousTesting: Sanger sequencing was performed. Sanger sequencing ensured coverage of all exons and splice sties of the ITGA2B and ITGB3 genes and extended 300-500 bp into the introns as well as including the UTR. They sequenced 416 bp upstream of the ITGA2B promoter and 463 bp upstream of the ITGB3 promoter. In total they sequenced 51.2% of the ITGA2B gene and 19.4% of the larger ITGB3 gene

      Gene: ITGB3

      Variant: NM_000212.2:c.224del (p.Cys75LeufsTer10)

      LegacyVariant: N/A

      ClinVar: N/A

      CAiD: CA8622899

      gnomAD: N/A

    4. Supplementary Table S1:

      Case2: GT3, French, age and gender not specified

      DiseaseAssertion: Glanzmann thrombasthenia type I

      FamilyInfo: N/A

      ParentalGenotype: N/A

      CasePresentingHPOs: N/A

      CaseHPOFreeText: All patients had a life-long history of mucocutaneous bleeding

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: All patients in this study met the clinical and platelet function requirements for GT-- this includes an absent or strongly reduced expression of alphaIIbBeta3 in platelets

      PlateletAggregation: All patients in this study met the clinical and platelet function requirements for GT-- this includes absent or severely reduced platelet aggregation with at least three physiological agonists

      CasePreviousTesting: Sanger sequencing was performed. Sanger sequencing ensured coverage of all exons and splice sties of the ITGA2B and ITGB3 genes and extended 300-500 bp into the introns as well as including the UTR. They sequenced 416 bp upstream of the ITGA2B promoter and 463 bp upstream of the ITGB3 promoter. In total they sequenced 51.2% of the ITGA2B gene and 19.4% of the larger ITGB3 gene

      Gene: ITGB3

      Variant: NM_000212.2:c.353T>A (p.Leu118His) and NM_000212.2:c.709_710del (p.Ser237Cysfs*13) and NM_000212.2:c.1732G>A (p.Asp578Asn)

      LegacyVariant: N/A

      ClinVar: N/A

      CAiD: CA291224511 (p.Leu118His) and CA8623029 (p.Ser237Cysfs*13) and CA8623343 (p.Asp578Asn)

      gnomAD: MAF in the European (non-Finnish) population in (p.Ser237Cysfs*13) is 0.00001796 https://gnomad.broadinstitute.org/variant/17-45363717-CAG-C and MAF in the Other population for (p.Asp578Asn) is 0.0008149 https://gnomad.broadinstitute.org/variant/17-45376715-G-A

    5. Supplementary Table S1:

      Case45: GT53, Argentina/Brazil, gender and age not specified

      DiseaseAssertion: Glanzmann thrombasthenia type I

      FamilyInfo: N/A

      ParentalGenotype: N/A

      CasePresentingHPOs: N/A

      CaseHPOFreeText: All patients had a life-long history of mucocutaneous bleeding

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: All patients in this study met the clinical and platelet function requirements for GT-- this includes an absent or strongly reduced expression of alphaIIbBeta3 in platelets

      PlateletAggregation: All patients in this study met the clinical and platelet function requirements for GT-- this includes absent or severely reduced platelet aggregation with at least three physiological agonists

      CasePreviousTesting: Sanger sequencing was performed. Sanger sequencing ensured coverage of all exons and splice sties of the ITGA2B and ITGB3 genes and extended 300-500 bp into the introns as well as including the UTR. They sequenced 416 bp upstream of the ITGA2B promoter and 463 bp upstream of the ITGB3 promoter. In total they sequenced 51.2% of the ITGA2B gene and 19.4% of the larger ITGB3 gene

      Gene: ITGB3

      Variant: NM_000212.2:c.356G>A (p.Arg119Gln) and NM_000212.2:c.1697G>A (p.Gly566Asp)

      LegacyVariant: N/A

      ClinVar: N/A

      CAiD: CA8622925 and CA400032338

      gnomAD: MAF in the African population is 0.0002470 https://gnomad.broadinstitute.org/variant/17-45360910-G-A

    6. Supplementary Table S1:

      Case31: GT38, Sweden/USA, gender and age not specified

      DiseaseAssertion: Glanzmann thrombasthenia type I

      FamilyInfo: N/A

      ParentalGenotype: N/A

      CasePresentingHPOs: N/A

      CaseHPOFreeText: All patients had a life-long history of mucocutaneous bleeding

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: All patients in this study met the clinical and platelet function requirements for GT-- this includes an absent or strongly reduced expression of alphaIIbBeta3 in platelets

      PlateletAggregation: All patients in this study met the clinical and platelet function requirements for GT-- this includes absent or severely reduced platelet aggregation with at least three physiological agonists

      CasePreviousTesting: Sanger sequencing was performed. Sanger sequencing ensured coverage of all exons and splice sties of the ITGA2B and ITGB3 genes and extended 300-500 bp into the introns as well as including the UTR. They sequenced 416 bp upstream of the ITGA2B promoter and 463 bp upstream of the ITGB3 promoter. In total they sequenced 51.2% of the ITGA2B gene and 19.4% of the larger ITGB3 gene

      Gene: ITGB3

      Variant: NM_000212.2:c.79+1G>A and NM_000212.2:c.940-2A>G

      LegacyVariant: N/A

      ClinVar: N/A

      CAiD: CA400028478 and CA400025605

      gnomAD: N/A

    1. Involvement of GPIIb-IIIa on Human Platelets in Phosphotyrosine-Specific Dephosphorylation

      PMID: 7687438

      Gene: ITGA2B and/or ITGB3

      HGNC: 6138 and 6156

      NoEvidence: This article does not mention Glanzmann thrombasthenia patients with variants in ITGA2B and ITGB3. Rather, This article reports another aspect of relationship between GPIIIb -IIIa and protein tyrosine phosphorylation, that is, the involvement of GPIIb-IIIa in dephosphorylation of certain tyrosine phosphorylated proteins

    1. Linkage of four polymorphisms on theaIIbgene

      PMID: 9695983

      Gene: ITGA2B and ITGB3

      HGNC: 6138 and 6156

      InsufficientEvidence: This article mentions variants in ITGA2B and ITGB3; however, there is no specific details of the GT patient's blood that was drawn to study these variants; therefore, there is insufficient evidence

    1. 20CabGT-20

      Case20: (Proband CabGT-21), Male, age not specified, North African

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: N/A

      ParentalGenotype: N/A

      CasePresentingHPOs: N/A

      CaseHPOFreeText: N/A

      CaseNotHPOs: N/A

      ProteinExpression: Flow cytometry showed <5% GPIIIa and GPIIb surface expression

      Platelet Aggregation: N/A

      CasePreviousTesting: Promoter and exon sequences of aIIb and b3 genes were amplified and directly sequence

      Gene: ITGB3

      Variant: NM_000212.2:c.100C>T (p.Arg34Ter)

      LegacyVariant: N/A

      ClinVar: N/A

      CAiD: CA8622852

      gnomAD MAF in the African population is 0.00008013 https://gnomad.broadinstitute.org/variant/17-45351805-C-T

    2. 23CabGT-23

      Case23: (Proband CabGT-23) Female, age not specified, Caucasian

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: N/A

      ParentalGenotype: N/A

      CasePresentingHPOs: N/A

      CaseHPOFreeText: N/A

      CaseNotHPOs: N/A

      ProteinExpression: Flow cytometry showed 10% GPIIb and 14% GPIIIa surface expression

      Platelet Aggregation: N/A

      CasePreviousTesting: Promoter and exon sequences of aIIb and b3 genes were amplified and directly sequence

      Gene: ITGB3

      Variant: NM_000212.2:c.665T>C (p.Leu222Pro)

      LegacyVariant: N/A

      ClinVar: N/A

      CAiD: CA291224887

      gnomAD MAF in the European (non-Finnish) population is 0.00006482 https://gnomad.broadinstitute.org/variant/17-45363676-T-C

    1. GT4

      Case4: (GT4), Female, 72 years old, French

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: N/A

      ParentalGenotype: N/A

      CasePresentingHPOs: N/A

      CaseHPOFreeText: Mucocutaneous bleeding

      CaseNotHPOs: N/A

      ProteinExpression: 10% surface expression levels of αIIbβ3

      Platelet Aggregation: Absent platelet aggregation to all agonists (no mention for which agonists or response to ristocetin)

      CasePreviousTesting: All the information we are given is "mutation screening of the ITGA2B and ITGB3 genes" the method for sequencing etc. was not stated

      Gene: ITGB3

      Variant: NM_000212.2:c.724C>T (p.Arg242Ter) and NM_000212.2:c.1871G>A (p.Cys624Tyr)

      LegacyVariant: (p.Arg216Ter) and (p.Cys598Tyr) (The paper gives legacy and current nomenclature)

      ClinVar: N/A

      CAiD: CA400023596 (p.Arg242Ter) and CA400032726 (p.Cys624Tyr)

      gnomAD MAF in the European (non-Finnish) population is 0.00006483 https://gnomad.broadinstitute.org/variant/17-45363735-C-T

    2. GT7

      Case7: (GT-7) Female, 57 years old, French

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: N/A

      ParentalGenotype: N/A

      CasePresentingHPOs: N/A

      CaseHPOFreeText: Mucocutaneous bleeding

      CaseNotHPOs: N/A

      ProteinExpression: <5% surface expression levels of αIIbβ3

      Platelet Aggregation: Absent platelet aggregation to all agonists (no mention for which agonists or response to ristocetin)

      CasePreviousTesting: All the information we are given is "mutation screening of the ITGA2B and ITGB3 genes" the method for sequencing etc. was not stated

      Gene: ITGB3

      Variant: NM_000212.2:c.565C>T (p.Pro189Ser)

      LegacyVariant: (p.Pro163Ser) (The paper gives legacy and current nomenclature)

      ClinVar: N/A

      CAiD: CA291224669

      gnomAD MAF in the European (non-Finnish) population is 0.00002638 https://gnomad.broadinstitute.org/variant/17-45362012-C-T

    3. GT1

      Case1: (GT1), Male, 60 years old, French Gypsy

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: N/A

      ParentalGenotype: N/A

      CasePresentingHPOs: N/A

      CaseHPOFreeText: Mucocutaneous bleeding defects

      CaseNotHPOs: N/A

      ProteinExpression: <5% surface expression levels of αIIbβ3

      Platelet Aggregation: Absent platelet aggregation to all agonists (no mention for which agonists or response to ristocetin)

      CasePreviousTesting: All the information we are given is "mutation screening of the ITGA2B and ITGB3 genes" the method for sequencing etc. was not stated

      Gene: ITGB3

      Variant: NM_000212.2:c.1031A>C (p.Tyr344Ser)

      LegacyVariant: (p.Tyr318Ser) (The paper gives legacy and current nomenclature)

      ClinVar: N/A

      CAiD: CA400025814

      gnomAD N/A

    1. Spontaneoushaemothorax:anuncommonpresentationofGlanzmannthrombasthenia

      PMID: 12434904

      Gene: ITGA2B and/or ITGB3

      HGNC: 6138 and 6156

      InsufficientEvidence: This article mentions a proband with GT; however, the article does not discuss this patient having variants in ITGA2B and/or ITGB3 therefore there is insufficient evidence

    1. GT8 

      Case8: GT-8, Caucasian, gender or age not specified

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: N/A

      ParentalGenotype: Mother: none and Father: c.118C>T heterozygous

      CasePresentingHPOs: N/A

      CaseHPOFreeText: Bleeding symptoms are moderate (See Table 1) Abstract mentions patients' bleeding signs include epistaxis, mucocutaneous bleeding, haematomas, petechiae, GI bleeding and menorrhagia; however, not specified per proband.

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: Flow cytometry was performed and expression is stated as pathogenic in Table 1

      PlateletAggregation: Platelet aggregation was performed and is stated as pathogenic in Table 1; however, no specific agonists mentioned

      CasePreviousTesting: All exons of ITGA2B and ITGB3 genes as well as surrounding intron regions were amplified by PCR using intronic primers as pre-viously described (12). The purified DNA fragments were then di-rectly sequenced.

      Gene: ITGB3

      Variant: NM_000212.2:c.118C>T

      LegacyVariant: N/A

      ClinVar: N/A

      CAiD: CA400031679

      gnomAD: N/A

    1. The propositus (L.C.; II.1) in family 2 is a 17-yearold Portuguese girl

      Case2: Female, 17 years old, Portugese

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: Also studied were the patient’s mother (I.2), her father (I.1), and her brother (II.2). See pedigree below in article

      ParentalGenotype: Parents were heterozygous for mutation

      CasePresentingHPOs: HP:0000967

      (Petechia)

      CaseHPOFreeText: Mucocutaneous bleeding

      CaseNotHPOs: N/A

      CaseNotHPOFreeText: N/A

      ProteinExpression: <5% surface expression of aIIbb3

      PlateletAggregation: Platelet aggregation is absent with ADP, collagen, epinephrine and arachidonic acid among agonists tested but the response was normal with ristocetin

      CasePreviousTesting: We examined each of the 30 exons of the b3 gene and each of the 15 exons of the aIIb gene for migration changes in PCR-SSCP analysis

      Gene: ITGB3

      Variant:

      LegacyVariant:

      ClinVar: N/A

      CAiD:

      gnomAD: MAF in the Other population is 0.0001629 https://gnomad.broadinstitute.org/variant/17-45369648-A-AC

    1. GT4

      Case#: 5, male

      Disease: Glazmann's Thrombasthenia

      CasePresentingHPOs: HP:0000967, HP:0000978, HP:0004406, HP:0000225, HP:0006298, HP:0001892

      PlateletAgreggation: Defective response to ADP, Adrenaline, Collagen, Arachidonic acid. Normal response to Ristocetin.

      GenotypingMethod: Genomic DNA was extracted from peripheral blood leukocytes for mutational analysis of the αIIb and β3 genes by DNA sequencing

      Allele 1:

      ClinVar: 1330351

      CAID:CA400030376

      Variant: NM_000212.3:c.1690G>C

      GnomAD: Not Found

      Allele 2

      ClinVar: 1330323

      CAID: CA915940255

      Variant: NM_000212.3:c.1784_1802delinsGTCACA

      GnomAD: Not Found

      ExpressionEvidence:Flow Cytometry of platelet integrin: 1.7% B3 expression, 52.8% A2B expression

    2. GT3

      Case#: 6 year old female

      Disease: Glazmann's Thrombasthenia

      CasePresentingHPOs: HP:0000967, HP:0000978, HP:0004406, HP:0000225, HP:0006298, HP:0001892

      Petechiae, Bruising susceptibility, Spontaneous, recurrent epistaxis, Gingival bleeding, Prolonged bleeding after dental extraction, Abnormal bleeding

      PlateletAgreggation: Defective response to ADP, Adrenaline, Collagen, Arachidonic acid. Normal response to Ristocetin.

      GenotypingMethod: Genomic DNA was extracted from peripheral blood leukocytes for mutational analysis of the αIIb and β3 genes by DNA sequencing

      Allele 1:

      ClinVar:1330340

      CAID:CA400021329

      Variant: NM_000212.3:c.361+1G>A

      GnomAD: Not Found

      Allele 2

      ClinVar: 1330351

      CAID: CA400030376

      Variant: NM_000212.3:c.1690G>C

      GnomAD: Not Found

      ExpressionEvidence:Flow Cytometry of platelet integrin: .61% B3 expression, 50% A2B expression

    3. GT5

      Case#: 19, female

      Disease: Glazmann's Thrombasthenia

      CasePresentingHPOs: HP:0000967, HP:0000978, HP:0000225, HP:0006298, HP:0001892

      PlateletAgreggation: Defective response to ADP, Adrenaline, Collagen, Arachidonic acid. Normal response to Ristocetin.

      GenotypingMethod: Genomic DNA was extracted from peripheral blood leukocytes for mutational analysis of the αIIb and β3 genes by DNA sequencing

      Allele 1:

      ClinVar: 1330339

      CAID: CA400024922

      Variant: NM_000212.3:c.856G>A

      GnomAD: Not Found

      Allele 2

      ClinVar: 1330314

      CAID: CA400028591

      Variant: NM_000212.3:c.1288C>T

      GnomAD: Highest in European non-Finnish population 0.000008801 (1/113622)

      ExpressionEvidence: Flow Cytometry of platelet integrin: 10% B3 expression, 86.6% A2B expression

    1. Hereditary Disorders of Platelet Function

      PMID: 21043747

      Gene: N/A

      HGNC: N/A

      NoEvidence: This article does not mention Glanzmann thrombasthenia patients with variants in ITGA2B and/or ITGB3; therefore, there is no evidence to report. This article gives a general overview of bleeding disorders including GT, and variants that have been reported in previous papers.

    1. The αvβ3 Integrin Regulates α5β1-mediated Cell Migration toward Fibronectin

      PMID: 9361020

      Gene: ITGA2B and/or ITGB3

      HGNC: 6138 and 6156

      InsufficientEvidence: This article mentions GT variants in ITGA2B/ITGB3; however, there are no GT patients harboring these variants; therefore, there is insufficient evidence

    1. Oral Surgery in Patients With Glanzmann Thrombasthenia: A Case Series

      PMID: 28341450

      General: ITGA2B and/or ITGB3 (Not mentioned in article; however, implied due to patients having GT)

      HGNC: 6138 and 6156

      InsufficientEvidence: This article mentions probands with Glanzmann thrombasthenia; however no mention of variants in ITGA2B or ITGB3

    1. Glanzmann thrombasthenia and pregnancy: about a case, a review of the literature Glanzmann's Thrombasthenia and pregnancy: a case and a review of the literature

      PMID: 14612172

      Gene: ITGA2B and/or ITGB3

      HGNC: 6138 and 6156

      InsufficientEvidence: This article is a review of GT and pregnancy. This article mentions a GT proband; however, there is no mention of variants in ITGA2B and/or ITGB3

    1. Probing Conformational Changes in the I-like Domain and the Cysteine-rich Repeat of Human β3 Integrins following Disulfide Bond Disruption by Cysteine Mutations IDENTIFICATION OF CYSTEINE 598 INVOLVED IN αIIbβ3 ACTIVATION*

      PMID: 11507099

      Gene: ITGB3

      HGNC: 6156

      PreviouslyPublished: PMID: 3818957, (citation 29 and 46-would not open), 2428841, 2392682, 9684783, (citation 41, 52, 53, 54 would not open), 10233432

    1. Rapid and Simple Platelet Function Assay to Assess Glycoprotein IIb/IIIa Receptor Blockade

      PMID: 9054743

      Gene: ITGA2B and/or ITGB3

      HGNC: 6138 and 6156

      NoEvidence: This article does not mention Glanzmann thrombasthenia patients/probands with variants in ITGA2B and/or ITGB3; therefore, there is no evidence to report

    1. patient ET,

      Case1: Patient ET, gender, age, and ethnicity is not specified

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: N/A

      ParentalGenotype: N/A

      CasePresentingHPOs: N/A

      CaseHPOFreeText: N/A

      CaseNotHPOs: N/A

      CaseNotHPOFreeText: N/A

      ProteinExpression: "However, ET platelets exhibited a normal surface expression of a-granule thrombospondin" this is all of the information we are given in this article; however Reference 13 might mention more on the protein expression. However, access is not available for article 13 at this time.

      PlateletAggregation: ET's platelets fail to aggregate in response to stimuli (the article does not state which agonists/stimuli and does not mention response to ristocetin)

      CasePreviousTesting: Two regions of ITGB3 were selected for amplification and sequence analysis. The first region, corresponding to exonIII encodes a fragment from D96 to D179 and the second region corresponding to exon IV, encodes a fragment from M180 to D233.

      Gene: ITGB3

      Variant: (NM_000212.2:c.719G>A (p.Arg240Gln)

      LegacyVariant: (p.Arg214Gln)

      ClinVar: 13553

      CAiD: CA123224

      gnomAD: N/A

      PreviouslyPublished: Patient ET may have been previously published in PMID: 2512684; however, access is not available to this article

    1. Supplementary Tables 1 and 2 combined information:

      Case11: GT11, Female, 12 years old

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: Not available per supplementary table 1

      ParentalGenotype: Parents are not consanguineous, no other genotype information available

      CasePresentingHPOs: HP:0000978, HP:0000979, HP:0031364, HP:0000225, HP:0000225

      (Bruising, purpura, ecchymosis, gingival bleeding, menorrhagia)

      CaseHPOFreeText: N/A

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: Showed <5% of αIIbβ3 expression measured by flow cytometry

      PlateletAggregation: Platelet aggregation showed no response to ADP and collagen but normal response to ristocetin

      CasePreviousTesting: All exons from ITGA2B and ITGB3 genes were amplified by PCR using intronic primers. DNA sequencing was determined by Sanger sequencing.

      Gene: ITGB3

      Variant: NM_000212.2:c.842A>C (p.His281Pro) and NM_000212.2:c.1199G>A (p.Cys400Tyr)

      LegacyVariant: N/A

      ClinVar: 13562 (p.Cys400Tyr)

      CAiD: CA400024802 (p.His281Pro) and CA123244 (p.Cys400Tyr)

      gnomAD: N/A

    2. Supplementary Tables 1 and 2 combined information:

      Case36: GT36, Male, 8 years old

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: Not available per supplementary table 1

      ParentalGenotype: Parents are not consanguineous, no other genotype information available

      CasePresentingHPOs: HP:0000978, HP:0000979, HP:0031364, HP:0000421, HP:0002239

      (Bruising, purpura, ecchymosis, epistaxis, gastrointestinal bleeding)

      CaseHPOFreeText: Intestinal intrussusception

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: Showed <5% of αIIbβ3 expression measured by flow cytometry

      PlateletAggregation: Platelet aggregation showed no response to ADP and collagen but normal response to ristocetin

      CasePreviousTesting: All exons from ITGA2B and ITGB3 genes were amplified by PCR using intronic primers. DNA sequencing was determined by Sanger sequencing.

      Gene: ITGB3

      Variant: NM_000212.2:c.1913+5G>T (c.1913+5G>T)

      LegacyVariant: N/A

      ClinVar: N/A

      CAiD: CA8623377

      gnomAD: MAF in the East Asian population 0.0001633 https://gnomad.broadinstitute.org/variant/17-45376901-G-T

    3. Supplementary Tables 1 and 2 combined information:

      Case15a: Male, 15 years old, brother to GT15b

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: Available per Table 1, brother to GT15b

      ParentalGenotype: Parents are not consanguineous, no other genotype information available

      CasePresentingHPOs: HP:0000978, HP:0000979, HP:0031364, HP:0000421, HP:0000225

      (Bruising, purpura, ecchymosis, epistaxis, gingival bleeding)

      CaseHPOFreeText: N/A

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: Showed 10-20% of αIIbβ3 expression measured by flow cytometry

      PlateletAggregation: Platelet aggregation showed no response to ADP, a small response to collagen but normal response to ristocetin

      CasePreviousTesting: All exons from ITGA2B and ITGB3 genes were amplified by PCR using intronic primers. DNA sequencing was determined by Sanger sequencing.

      Gene: ITGB3

      Variant: NM_000212.2:c.1525del (p.Gln509Argfs*160) and NM_000212.2:c.1199G>A (p.Cys400Tyr)

      LegacyVariant: N/A

      ClinVar: 13562 (p.Cys400Tyr)

      CAiD: CA915940237 (p.Gln509Argfs*160) and CA123244 (p.Cys400Tyr)

      gnomAD: N/A

    4. Supplementary Tables 1 and 2 combined information:

      Case28: GT28, Female, 6 years old

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: Not available per supplementary table 1

      ParentalGenotype: Parents are not consanguineous, no other genotype information available

      CasePresentingHPOs: HP:0000978, HP:0000979, HP:0031364, HP:0000421, HP:0000225, HP:0002239

      (Bruising, purpura, ecchymosis, epistaxis, gingival bleeding, gastrointestinal bleeding)

      CaseHPOFreeText: Post traumatic hemorrhage

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: Showed 10-20% of αIIbβ3 expression measured by flow cytometry

      PlateletAggregation: Platelet aggregation showed no response to ADP and collagen but normal response to ristocetin

      CasePreviousTesting: All exons from ITGA2B and ITGB3 genes were amplified by PCR using intronic primers. DNA sequencing was determined by Sanger sequencing.

      Gene: ITGB3

      Variant: NM_000212.2:c.1728del (p.S577Pfs*92) and NM_000212.2:c.892C>T (p.Gln298Ter)

      LegacyVariant: N/A

      ClinVar: N/A

      CAiD: CA915940253 (p.S577Pfs*92) and CA400025098 (p.Gln298Ter)

      gnomAD: N/A

    1. Strasbourg I

      Case29: Strasbourg 1

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: N/A

      ParentalGenotype: N/A

      CasePresentingHPOs: Bruising HP:0000978

      CaseHPOFreeText: Hematoma

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: N/A

      PlateletAggregation: N/A

      CasePreviousTesting: N/A

      Gene: ITGB3

      Variant: NM_000212.2:c.718C>T (p.Arg240Trp)

      LegacyVariant: N/A

      ClinVar: 13555

      CAiD: CA123228

      gnomAD: MAF in the East Asian population is 0.00005437 https://gnomad.broadinstitute.org/variant/17-45363729-C-T

      PreviouslyPublished: Ref 46, 47

    2. I-J21

      Case39: Patient IJ13

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: N/A

      ParentalGenotype: N/A

      CasePresentingHPOs: HP:0000979 Purpura

      CaseHPOFreeText: N/A

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: <2% GPIIIa and GPIIb expression

      PlateletAggregation: N/A

      CasePreviousTesting: N/A

      Gene: ITGB3

      Variant: NM_000212.2:c.2031_2041del and another variant

      LegacyVariant: N/A

      ClinVar: N/A

      CAiD: CA915940605

      gnomAD: N/A

      PreviouslyPublished: Reference 62

    3. RS

      Case37: Patient RS

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: N/A

      ParentalGenotype: N/A

      CasePresentingHPOs: HP:0000421, HP:0000225, HP:0000132

      (Epistaxis, gingival bleeding, menorrhagia)

      CaseHPOFreeText: N/A

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: N/A

      PlateletAggregation: N/A

      CasePreviousTesting: N/A

      Gene: ITGB3

      Variant: NM_000212.2:c.1260G>A and the other variant won't show up in CAR

      LegacyVariant: N/A

      ClinVar: N/A

      CAiD: CA8623200

      gnomAD: MAF in the African population is 0.00004005 https://gnomad.broadinstitute.org/variant/17-45368454-G-A

      PreviouslyPublished: Reference 60

    4. Family I

      Case23: Family I from GT database, gender and age not specified

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: N/A

      ParentalGenotype: N/A

      CasePresentingHPOs: N/A

      CaseHPOFreeText: N/A

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: N/A

      PlateletAggregation: N/A

      CasePreviousTesting: N/A

      Gene: ITGB3

      Variant: NM_000212.2:c.262C>T (p.Arg88Ter)

      LegacyVariant: N/A

      ClinVar: N/A

      CAiD: CA400020703

      gnomAD: MAF in the Other population 0.0001385 https://gnomad.broadinstitute.org/variant/17-45360816-C-T

      PreviouslyPublished: Reference number 28

    1. Different biochemical expression pattern of platelet surface glycoproteins suggests molecular diversity of Glanzmann's thrombasthenia in Iran.

      PMID: 23912132

      Genes: ITGA2B and ITGB3

      HGNC: 6138 and 6156

      NoEvidence: This article discusses GT; however no probands with variants in ITGA2B and ITGB3 are discussed.

      Note: Annotated on the PubMed Abstract because the journal this article is in, Blood Coagulation and Fibrinolysis does not work properly.

    1. Primary arrest of circulating platelets on collagen involves phosphorylationof Syk, cortactin and focal adhesion kinase : studies under flow conditions

      PMID: 11988077

      Gene: ITGA2B and/or ITGB3

      HGNC: 6138 and 6156

      NoEvidence: This article does not mention GT probands with variants in ITGA2B and/or ITGB3 therefore there is insufficient evidence. However, the present study used blood samples from 2 patients with GT; therefore, the gene name and HGNC are included in this annotation

    1. Improving selection of αIIbβ3-binding phage antibodies with increased reactivity derived from immunized donors

      PMID: 14499243

      Gene: ITGA2B and/or ITGB3

      HGNC: 6138 and 6156

      InsufficientEvidence: This mentions GT case reports; however, no variants in ITGA2B and/or ITGB3 are mentioned in this patient; therefore, we have insufficient evidence

    1. British Journal of HaematoJogy. 1995. 89. 124-130 Platelets with 10% of the normal amount of glycoprotein VI have an impaired response to collagen that results in a mild bleeding tendency

      PMID: 7530476

      Gene: ITGA2B and/or ITGB3

      HGNC: 6138 and 6156

      InsufficientEvidence: This mentions a Glanzmann thrombasthenia patient; however, no variants in ITGA2B and/or ITGB3 are mentioned in this patient; therefore, we have insufficient evidence

    1. The propositus (A.C.S.; II.1) in family 1 is a 22-yearold Portuguese girl

      Case1: Female, 22 years old, Portuguese

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: Also studied were the probands mother (I.2) father (1.1) and sister (II.2) and only her sister has reported excessive bleeding, although her platelet aggregation tests were normal for all of them (See Fig. 2A)

      ParentalGenotype: Parents were heterozygous

      CasePresentingHPOs: HP:0000967

      (Petechia)

      CaseHPOFreeText: Mucocutaneous bleeding

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: Western blot expression study shows classic type 1 GT with less than 5% surface expression of aIIb3

      PlateletAggregation: Platelet aggregation was absent with physiological agonists but agglutination with ristocetin was normal

      CasePreviousTesting: Examined each of the 30 exons of beta3 gene and each of the 15 exons of the aIIb gene for migration changes in PCR-SSCP analysis. Each PCR reaction was controlled by electrophoresis of the amplified fragments on 1.5% agarose gels

      Gene: ITGB3

      Variant: NM_000212.2:c.1924G>T (p.Glu642Ter)

      LegacyVariant: N/A

      ClinVar: 13565

      CAiD: CA123249

      gnomAD: N/A

    1. 12

      Case1: Female, 15, ethnicity not specified

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: N/A

      ParentalGenotype: "This mutation was confirmed in the proband and parents."

      CasePresentingHPOs: HP:0000225 (Gingival bleeding)

      CaseHPOFreeText: Site of bleeding: skin, menstrual

      CaseNotHPOs: N/A

      CaseNotHPOFreeText: N/A

      ProteinExpression: See Table 1 (information provided)

      PlateletAggregation: See Table 1 (information provided)

      CasePreviousTesting: Screened mutations in ITGA2B and ITGB3 by multiplex polymerase chain reaction (PCR) amplification (MPCR) and conformation-sensitive gel electrophoresis

      Gene: ITGB3

      Variant: NM_000212.2:c.646T>C (p.Tyr216His)

      LegacyVariant: (p.Tyr190His)

      ClinVar: N/A

      CAiD: CA400023428

      gnomAD: N/A

    1. Human platelet alloantigen polymorphism in Glanzmann's thrombasthenia and its impact on the severity of the disease Kanjaksha Ghosh Institute of Immunohematology (ICMR), KEM Hospital, Parel, Mumbai, IndiaSearch for more papers by this author Bipin Kulkarni Institute of Immunohematology (ICMR), KEM Hospital, Parel, Mumbai, IndiaSearch for more papers by this author Sona Nair Institute of Immunohematology (ICMR), KEM Hospital, Parel, Mumbai, IndiaSearch for more papers by this author Shrimati Shetty Institute of Immunohematology (ICMR), KEM Hospital, Parel, Mumbai, IndiaSearch for more papers by this author Dipika Mohanty Institute of Immunohematology (ICMR), KEM Hospital, Parel, Mumbai, IndiaSearch for more papers by this author

      PMID: 12406067

      Gene: ITGA2B and/or ITGB3

      HGNC: 6138 and 6156

      InsufficientEvidence: This article does not mention variants in ITGA2B and/or ITGB3 in the probands in this article; therefore, we have insufficient evidence

    1. LeuSsab

      Case12: Patient Ssab

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: N/A

      ParentalGenotype: N/A

      CasePresentingHPOs: N/A

      CaseHPOFreeText: N/A

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: N/A

      PlateletAggregation: N/A

      CasePreviousTesting: The amplification of DNA fragments using PCR and their electrophoretic migration through a denaturing gradient was used to scan the entire coding region, splice site junctions and promoter regions of the GPIIb and GPIIIa genes for all 20 patients in this study

      Gene: ITGB3

      Variant: NM_000212.2:c.1955A>T (p.His652Leu)

      LegacyVariant: (p.His626Leu)

      ClinVar: N/A

      CAiD: CA400032927

      gnomAD: N/A

    1. patient (GT-2)

      Case2: GT-2, gender, age, ethnicity not specified

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: N/A

      ParentalGenotype: N/A

      CasePresentingHPOs: HP:0000979

      (Purpura)

      CaseHPOFreeText: Severe bleeding syndrome, frequent hematomas, has a history of blood transfusion with platelet concentrates

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: Flow cytometry showed that this patient lacked integrin αIIbβ3 expression

      PlateletAggregation: Platelets failed to aggregate with physical agonists

      CasePreviousTesting: N/A

      Gene: ITGB3

      Variant:NM_000212.2:c.940G>T (p.Asp314Tyr)

      LegacyVariant: N/A

      ClinVar: N/A

      CAiD: CA400025612

      gnomAD: N/A

    1. GT 34

      Case27: GT34, Female, India, age of onset is 5 years old

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: N/A

      ParentalGenotype: N/A

      CasePresentingHPOs: N/A

      CaseHPOFreeText: Patients were recruited as they presented consecutively from 1996 to 1998 for evaluation of a mucocutaneous bleeding disorder

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: N/A

      PlateletAggregation: All patients examined had defective ADP, epinephrine, and collagen induced aggregation and normal ristocetin induced aggregation

      CasePreviousTesting: Mutations were detected by the method of single strand conformation polymorphism (SSCP) analysis, followed by nucleotide sequencing and confirmation by restriction fragment length polymorphism (RFLP) assays. The sequences of the primers employed and the reaction conditions for PCR amplification of the exons, adjacent intronic regions, and 50 and 30 untranslated regions of the aIIb and b3 gene

      Gene: ITGB3

      Variant: NM_000212.2:c.1402G>T (p.Glu468Ter)

      LegacyVariant: N/A

      ClinVar: N/A

      CAiD: CA400029121

      gnomAD: N/A

    2. GT 64

      Case37: GT64, Female, India, age of onset is 16 years old

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: N/A

      ParentalGenotype: N/A

      CasePresentingHPOs: N/A

      CaseHPOFreeText: Patients were recruited as they presented consecutively from 1996 to 1998 for evaluation of a mucocutaneous bleeding disorder

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: N/A

      PlateletAggregation: All patients examined had defective ADP, epinephrine, and collagen induced aggregation and normal ristocetin induced aggregation

      CasePreviousTesting: Mutations were detected by the method of single strand conformation polymorphism (SSCP) analysis, followed by nucleotide sequencing and confirmation by restriction fragment length polymorphism (RFLP) assays. The sequences of the primers employed and the reaction conditions for PCR amplification of the exons, adjacent intronic regions, and 50 and 30 untranslated regions of the aIIb and b3 gene

      Gene: ITGB3

      Variant: NM_000212.2:c.428T>G (p.Leu143Trp)

      LegacyVariant: N/A

      ClinVar: 13567

      CAiD: CA123252

      gnomAD: MAF in the Other population is 0.0001629 https://gnomad.broadinstitute.org/variant/17-45361875-T-G

    3. GT 48

      Case31: GT48, Male, India, age of onset is 5 years old

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: N/A

      ParentalGenotype: N/A

      CasePresentingHPOs: N/A

      CaseHPOFreeText: Patients were recruited as they presented consecutively from 1996 to 1998 for evaluation of a mucocutaneous bleeding disorder

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: N/A

      PlateletAggregation: All patients examined had defective ADP, epinephrine, and collagen induced aggregation and normal ristocetin induced aggregation

      CasePreviousTesting: Mutations were detected by the method of single strand conformation polymorphism (SSCP) analysis, followed by nucleotide sequencing and confirmation by restriction fragment length polymorphism (RFLP) assays. The sequences of the primers employed and the reaction conditions for PCR amplification of the exons, adjacent intronic regions, and 50 and 30 untranslated regions of the aIIb and b3 gene

      Gene: ITGB3

      Variant: NM_000212.2:c.428T>G (p.Leu143Trp)

      LegacyVariant: N/A

      ClinVar: 13567

      CAiD: CA123252

      gnomAD: MAF in the Other population is 0.0001629 https://gnomad.broadinstitute.org/variant/17-45361875-T-G)

    1. A novel ELISA for diagnosis of Glanzmann’s thrombasthenia and the heterozygote carriers

      PMID: 22183252

      Gene: ITGA2B and ITGB3

      HGNC: 6138 and 6156

      InsufficientEvidence: This article mentions variants in 10 GT patients; however, it does not specify each case/proband with their gender/age/ethnicity and bleeding phenotypes.

    1. Missed at first Glanz: Glanzmann thrombasthenia initially misdiagnosed as Von Willebrand Disease

      PMID: 30551951

      Gene: ITGA2B and/or ITGB3 (Patient has GT; therefore, these genes may be involved)

      HGNC: 6138 and 6156

      InsufficientEvidence: Proband is presented in this article with GT; however, no variant information is provided therefore insufficient evidence

    1. two-year-old male child

      Case1: Male, two years old, ethnicity not specified

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: N/A

      ParentalGenotype: N/A

      CasePresentingHPOs: N/A

      CaseHPOFreeText: N/A

      CaseNotHPOs: N/A

      CaseNotHPOFreeText: N/A

      ProteinExpression: The expression levels of this mutant αIIbβ3 complex on the platelet surface were normal

      PlateletAggregation: N/A (minimal information for the proband)

      CasePreviousTesting: N/A

      Gene: ITGB3

      Variant: NM_000212.2:c.2248C>T (p.Arg750Ter)

      LegacyVariant: (p.Arg724Ter)

      ClinVar: 13564

      CAiD: CA123246

      gnomAD: MAF in the African population is 0.0006008 https://gnomad.broadinstitute.org/variant/17-45384950-C-T

    1. Autoimmune Thrombocytopenic Purpura (AITP) andAcquired Thrombasthenia Due to Autoantibodies to GPIIb-IIIa in a Patient With an Unusual Platelet MembraneGlycoprotein Composition

      PMID: 9462551

      Gene: ITGA2B and ITGB3

      HGNC: 6138 and 6156

      InsufficientEvidence: This article mentions a case report of a patient with thrombocytopenia; however, there is no mention of this proband harboring variants in ITGA2B and/or ITGB3

    1. The use of recombinant factor VIIa in a patient with severe Glanzmann's thrombasthenia to facilitate insertion of a Port-a-Cath.

      PMID: 10695773

      Gene: ITGA2B and/or ITGB3

      HGNC: 6138 and 6156

      InsufficientEvidence: This article mentions a proband with GT; however, no variants in ITGA2B and/or ITGB3 were mentioned in this individual therefore there is insufficient evidence

      Note: Able to get PDF of article; however, was not able to use Hypothes.is on the PDF

    1. Case 2

      Case#: Case 2, 20 yo Female

      DiseaseAssertion: Glanzman thrombasthenia

      ParentalGenotype: Not provided

      CasePresentingHPOs: (HP:0000978, Bruising susceptibility) (HP:0000421, Epistaxis)

      PlateletAggregation: Strong reduction of platelet aggregation with all agonists, except ristocetin. Normal platelet count.

      CaseHPOFreeText:

      CaseNotHPOs:

      CaseNotHPOFreeText:

      ProteinExpression: Flow cytometry, platelets with 18% to 24% residual αIIbβ3

      CasePreviousTesting: Not provided

      PreviouslyPublished: Not provided

      Gene: ITGB3

      HGVS: NM_000212.3:c.187C>T

      ClinVar: 631774 https://www.ncbi.nlm.nih.gov/clinvar/variation/631774/

      CAID: CA8622892

      gnomAD: PopMax = 0.00002555 https://gnomad.broadinstitute.org/variant/17-47283375-C-T?dataset=gnomad_r4

      Gene: ITGB3

      HGVS: NM_000212.3:c.505C>T

      ClinVar: 953061 https://www.ncbi.nlm.nih.gov/clinvar/variation/953061/

      CAID: CA291224658

      gnomAD: PopMax = 2.800e-7 https://gnomad.broadinstitute.org/variant/17-47284586-C-T?dataset=gnomad_r4

    1. L

      Case12: Patient ID L, Female, 10 years old, ethnicity not specified

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: Patient L is related to patient M (See Table 1; very minimal information)

      ParentalGenotype: N/A

      CasePresentingHPOs: HP:0000978, HP:0000225

      (Easy bruising, gingival bleeding)

      CaseHPOFreeText: N/A

      CaseNotHPOs: HP:0000967, HP:0000979, HP:0004406, HP:0002239, HP:0002239, HP:0000790, HP:0005261, HP:0002248

      (Petechiae, purpura, recurrent epistaxis, GI bleeding, intracranial hemorrhage, hematuria, hemarthrosis, hematemesis)

      CaseNotHPOsFreeText: Hemorrhage after dental, hemorrhage after trauma, ear bleeding, hematoma

      ProteinExpression: N/A

      PlateletAggregation: Defective response to ADP, adrenaline, collagen, arachidonic acid, and normal response to ristocetin

      CasePreviousTesting: Exon PCR was used to amplify coding regions of the ITGA2B and ITGB3 genes. PCR products were purified and Sanger sequenced. Segregation using parental samples was undertaken when available.

      Gene: ITGB3

      Variant: NC_000017.11:g.47284509T>G (p.Leu143Trp)

      LegacyVariant: N/A

      ClinVar: 13567

      CAiD: CA123252

      gnomAD: MAF in Other population 0.0001629 http://gnomad.broadinstitute.org/variant/17-45361875-T-G

      PreviouslyPublished: PMID: 9376589

    1. 14.

      Case14: Female, age not specified

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: N/A

      ParentalGenotype: N/A

      CasePresentingHPOs: N/A

      CaseHPOFreeText: Moderate bleeding tendency

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: N/A

      PlateletAggregation: Minimal information, not specific enough

      CasePreviousTesting: None

      Gene: ITGA2B

      Variant: NM_000212.2:c.224del (p.Cys75LeufsTer10)

      LegacyVariant: N/A

      ClinVar: N/A

      CAiD: CA8622899

      gnomAD: MAF in European non Finnish population 0.000008795 http://gnomad.broadinstitute.org/variant/17-45360777-TG-T

    2. 3

      Case3: No gender, age, or ethnicity provided. Patient followed in Germany

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: N/A

      ParentalGenotype: N/A

      CasePresentingHPOs: N/A

      CaseHPOFreeText: Mild bleeding

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: N/A

      PlateletAggregation: Minimal information, not specific enough

      CasePreviousTesting: Sanger sequencing identified disease-causing variants in 18 out of 20 patients (Probands 6 and 14 excluded) with istoantibodies to αIIbβ3. The mutations were evenly distributed between ITGB3 and ITGA2B.

      Gene: ITGB3

      Variant: Not enough information, all we are told is "premature stop in exon 3"

      LegacyVariant: N/A

      ClinVar: N/A

      CAiD: N/A

      gnomAD: N/A

    1. Patient'sCase.

      Case1: (Patient P), age and ethnicity not specified (cannot access previously published article where patient information is detailed: (Caen, J. P., Rosa, J.-P., Soria, C. & Boizard, B. (1983) C. R. Acad. Sci. Ser. 2 29, 479-481)

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: See pedigree in Fig. 5

      ParentalGenotype: N/A

      CasePresentingHPOs: N/A

      CaseHPOFreeText: Exhibited lifelong bleeding tendency

      CaseNotHPOs: N/A

      CaseNotHPOFreeText: N/A

      ProteinExpression: See Table 1

      PlateletAggregation: Failure of platelets to aggregate and to bind fibrinogen in response to agonists such as ADP, collagen or thrombin

      CasePreviousTesting: Sequenced the cytoplasmic domain of ITGB3 following PCR on the platelet RNA

      Gene: ITGB3

      Variant: NM_000212.2:c.2332T>C (p.Ser778Pro)

      LegacyVariant: (p.Ser752Pro)

      ClinVar: 13556

      CAiD: CA123230

      gnomAD: N/A

      PreviouslyPublished: PMID: 6223690 (this article is not available on through UNC Libraries and there is no option to request the text either)

    1. The patient was a 35‐year‐old female

      Case1: Female, 35 years old, Japanese

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: Pedigree found in Fig 4

      ParentalGenotype: Mother: heterozygote for (p.Ile330Asn) and Father: heterozygote for (p.His306Pro)

      CasePresentingHPOs: N/A

      CaseHPOFreeText: Profuse bleeding at times

      CaseNotHPOs: N/A

      CaseNotHPOFreeText: N/A

      ProteinExpression: The surface expression of αIIbβ3 complex on the patient's platelets was not observed in the flow cytometric analysis used to detect the αIIbβ3 complex (Fig. 1A).

      PlateletAggregation: No aggregation of patient's platelets in response to ADP and collagen but normal aggregation occurred in response to ristocetin

      CasePreviousTesting: Nucleotide sequences of beta3 cDNA and beta3 genomic DNA were analyzed by the dye terminator cycle sequencing method, in addition the nucleotide sequences of alphaIIbeta cDNA were anlso analyzed based on the published sequence of alphaIIbeta

      Gene: ITGB3

      Variant: NM_000212.2:c.989T>A (p.Ile330Asn) and NM_000212.2:c.917A>C (p.His306Pro)

      LegacyVariant: (p.Ile304Asn) and (p.His280Pro)

      ClinVar: N/A

      CAiD: CA400025722 and CA291224999

      gnomAD: MAF in the East Asian population is 0.00005437 https://gnomad.broadinstitute.org/variant/17-45364575-A-C

    1. 3-month-old male

      Case#: 3 month old male neonate

      Disease: Glazmann's Thrombasthenia

      CasePresentingHPOs: HP:0000967, HP:0007420, HP:0003010

      Petechiae, Spontaneous hematomas, Prolonged bleeding time

      PlateletAgreggation: Impaired in response to all stimuli including adenine diphosphate (2%), collagen (24%), arachidonic acid (13%), and epinephrine (13%). In contrast, platelet aggregation to ristocetine was almost normal (67%; lower limit of normal is 70%).

      ExpressionEvidence: Flow Cytometry analysis showed reduced αIIbβ3 expression on patient platelets

      FamilyInfo: Pedigree Figure 1. Homozygous HPA-1aa father and heterozygous HPA-1ab mother indicating that both HPA-1a alleles inherited to the GT son are defective carrying either Cys460Trp or Trp11Arg mutation.

      GenotypingMethod:

      Compound heterozygous:

      Allele 1

      ClinVar: 953012

      CAID: CA400029369

      Variant: NM_000212.3:c.1458C>G

      GnomAD: Not Found

      FunctionalEvidence: Flow cytometry analysis of wild-type (Cys460) and mutant (Trp460) expressed on HEK293 cells showed equal surface expression of αIIbβ3 and αvβ3. Immunoblotting analysis (Figure 2B) showed that the mutant β3 migrated slightly slower in comparison with wild-type β3 isoform, indicating that the disruption of one disulfide bond due to Cys460Trp mutation alters the secondary structure of integrin αIIbβ3. However, evidence that Csy460Trp mutation alters the binding of some mAbs against HPA-1a.

      Allele 2:

      ClinVar: 953028

      CAID: CA291240306

      Variant: NM_000212.3:c.31T>C

      GnomAD: Not Found

    1. GT1-III2

      Case#: GT1-III2 male, 11 years old

      Disease: Glazmann's Thrombasthenia

      CasePresentingHPOs: (found in appendix) HP:0001892, HP:0000421, HP:0000225, HP:0000967, HP:0000979, HP:0031364, HP:0006298,

      ExpressionEvidence: Not done

      FamilyInfo: Positive consanguinity, parents heterozygous carriers, 2 affected siblings, one deceased. Pedigree figure 1.

      GenotypingMethod: Sanger DNA sequencing to identify causative mutations in each case

      ClinVar: 1691482

      CAID: CA400021881

      Variant: NM_000212.3:c.422A>G

      GnomAD: Not Found

    1. Sustained engraftment and resolution of bleeding phenotype after unrelated cord blood hematopoietic stem cell transplantation for severe glanzmann thrombasthenia.

      PMID: 19648793

      Genes: ITGA2B and/or ITBG3

      HGNC: 6138 and 6156

      InsufficientEvidence: This article mentions an individual with GT; however, there is no mention of variants in ITGA2B and/or ITGB3 therefore we have insufficient evidence

    1. 59-year-old Japanese man

      Case1: Male, 59 years old, Japanese

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: N/A

      ParentalGenotype: N/A

      CasePresentingHPOs: HP:0002239, HP:0025085

      (GI bleeding, bloody stools)

      CaseHPOFreeText: N/A

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: Flow cytometry showed expression of αIIbβ3 on patient platelets was <5% compared to that of normal controls indicating the patient had Type 1 GT

      PlateletAggregation: Transfused platelets showed normal response to ADP stimulation (See Fig. 3B) indicating that transfused platelets can support primary hemostatic plug formation

      CasePreviousTesting: Analyzed whole coding region of αIIb and β3 cDNA, amplified from patient mRNA.

      Gene: ITGB3

      Variant: NM_000212.2:c.892C>T

      LegacyVariant: N/A

      ClinVar: N/A

      CAiD: CA400025098

      gnomAD: N/A

  3. www.ncbi.nlm.nih.gov www.ncbi.nlm.nih.gov
    1. Further Characterization of the Thrombasthenia-related Idiotype OG. Antiidiotype Defines a Novel Epitope(s) Shared by Fibrinogen BE Chain, Vitronectin, and yon Willebrand Factor and Required for Binding to/33

      PMID: 7525851

      Gene: ITGA2B and/or ITGB3

      HGNC: 6138 and 6156

      InsufficientEvidence: This article mentions a GT proband; however, no variants in ITGA2B and/or ITGB3 are mentioned therefore there is insufficient evidence

    1. GT24

      Case15: (GT24) Gender, age and ethnicity not specified

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: N/A

      ParentalGenotype: N/A

      CasePresentingHPOs: N/A

      CaseHPOFreeText: Inclusion criteria were patients with a history of mucocutaneous bleeding (Figure 1 shows a bar diagram of all the clinical manifestations in the patient cohort in this article)

      CaseNotHPOs: N/A

      ProteinExpression: Platelet receptor alphaIIbbeta3 protein was analyzed by flow cytometry followed by western blotting

      Platelet Aggregation: Inclusion criteria for probands was absent or reduced platelet aggregation with agonists such as ADP, adrenaline, arachidonic acid, and collagen (no mention of ristocetin here-- this article does not tell us the specific aggregation for each proband in the paper)

      CasePreviousTesting: For mutation analysis of ITGA2B and ITGB3 genes, DNA extraction from whole blood, PCR, heteroduplex PCR followed by CSGE and DNA sequencing were performed. All 30 exons of ITGA2B and 15 exons of ITGB3, as well as their promoters, were analyzed by CSGE following heteroduplex PCR.

      Gene: ITGB3

      Variant: NM_000212.2:c.953T>C (p.Leu318Ser)

      LegacyVariant: N/A

      ClinVar: N/A

      CAiD: CA400025639

      gnomAD MAF in the European Finnish population is 0.00004620 https://gnomad.broadinstitute.org/variant/17-45367060-T-C

  4. pdfs.semanticscholar.org pdfs.semanticscholar.org
    1. A 9-year old female

      Case1: Female, 9 years old, Indian

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: N/A

      ParentalGenotype: Article mentions parents have the variant (at end of article); however, no details are provided

      CasePresentingHPOs: HP:0000225, HP:0000421

      (Gingival bleeding, recurrent epistaxis)

      CaseHPOFreeText: Prolonged bleeding from cuts

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: Flow cytometry showed the presence of normal levels of GPIIb, GPIIIa, GPIIb-IIIa and GPIb-IX on the patients platelet surface

      PlateletAggregation: In spite of the normal levels of GPIIb-IIIa and normal fibrinogen binding the platelets showed complete absence of aggregation in response to ADP (6 mM) and collagen (4 mg/mL).

      CasePreviousTesting: Denaturing gradient gel electrophoresis analysis and DNA sequencing were done to detect abnormalities. DNA sequencing of exon 3 o ITGB3 was performed

      Gene: ITGB3

      Variant: M_000212.2:c.445T>C (p.Ser149Pro)

      LegacyVariant: (p.Ser123Pro)

      ClinVar: N/A

      CAiD: CA400021997

      gnomAD: N/A

    1. Study of the Relationship between HPA-1 and HPA-5 Gene Polymorphisms and Refractory to Platelet Therapy and Recombinant Factor VII in Glanzmann Thrombasthenia Patients in Southeast of Iran

      PMID: 29951177

      Gene: ITGA2B and ITGB3

      HGNC: 6138 and 6156

      InsufficientEvidence: Article mentions Glanzmann thrombasthenia probands; however, no variants associated with patients therefore insufficient evidence

    1. 20-yr-old man

      Case#: Male, 20

      DiseaseAssertion: Glanzmann thrombasthenia–like syndrome

      FamilyInfo: Twin brother (shares variant), Mother, Figure 1B

      ParentalGenotype: Maternal inheritence, diagnosed GTLS

      CasePresentingHPOs: thrombocytopenia (HP:0001873), Platelet anisocytosis (HP:0032438), (HP:0003645) activated partial thromboplastin times, (HP:0000967) petechia

      PlateletAggregation: Thrombocytopenia (51×109/L, reference interval (RI): 150–450×109/L), Serum antiplatelet antibody test was negative. Platelet macrocytosis.

      CaseHPOFreeText: Occasional petechia noted. Platelet macrocytosis.

      CaseNotHPOs: (HP:0012200) prothrombin, (HP:0001892) abnormal bleeding

      CaseNotHPOFreeText: Platlets in Figure 1A. No thrombotic symptoms.

      ProteinExpression: this mutation entails the substitution of the hydrophobic leucine with a hydrophilic arginine. This charge reversal in the TMD of β3 may potentially impact helix conformation, integrin assembly, and signaling pathways.Platelet aggregation was severely diminished in response to adenosine 5′-diphosphate, collagen, arachidonic acid, and epinephrine, but not ristocetin, Figure 1E. Flow cytometry showed slightly increased CD41a expression, probably because of increased platelet size, Figure 1F.

      CasePreviousTesting: Exome sequencing via TruSight One expanded panel (Illumina), whole-genome sequencing via the Korean National Project of Bio Big Data, Maternal inheritance was confirmed via Sanger sequencing analysis.

      PreviouslyPublished: NA

      Gene: ITGB3

      Variant: NM_000212.3: c.2192T>G, [NP_000203.2:p.Leu731Arg]

      HGVS: NM_000212.3:c.2192T>G (ITGB3)

      ClinVar: Absent

      CAID: CA400034083

      gnomAD: Absent

    1. Glanzmann thrombasthenia and Bernard–Souliersyndrome in south Iran

      PMID: 16178914

      Gene: ITGA2B and/or ITGB3

      HGNC: 6138 and 6156

      InsufficientEvidence: This article mentions various probands with GT; however, there are no mentioned variants in ITGA2B and/or ITGB3, therefore, we have insufficient evidence

    1. F4P1

      Case4: Patient F4P1, Male, 43 years old, Tunisian

      DiseaseAssertion: Glanzmann thrombasthenia type I

      FamilyInfo: Table 1 states there is a family history of bleeding (we have minimal to no specific info on this)

      ParentalGenotype: N/A

      CasePresentingHPOs: HP:0004406 (Recurrent epsitaxis)

      CaseHPOFreeText: N/A

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: N/A

      PlateletAggregation: GT diagnosis was based on absent platelet aggregation induced by ADP, collagen, and TRAP and subnormal or cyclical ristocetin induced agglutination

      CasePreviousTesting: Using PCR they successfully amplified 20 DNA fragments for the ITGA2B gene (covering more than 48% of the ITGA2B gene constituting 30 exons) and15 DNA fragments of theITGB3gene (covering 15 exons)

      Gene: ITGA2B and ITGB3

      Variant: ITGA2B variants: g.13378A>C, g.14856C>A, g.19021C>T (I am denoting this as Unknown Variants as I need guidance with these-- biocurator curating this paper can also look them up- but I am noting them here) and ITGB3 variants: NM_000212.2:c.176T>C (p.Leu59Pro) and NM_000212.2:c.1143A>C (p.Val381Val) and NM_000212.2:c.1545G>A (p.Arg515Arg)

      LegacyVariant: N/A

      ClinVar: 13558 (p.Leu59Pro), 255535 (p.Val381Val), 255537 (p.Arg515Arg)

      CAiD: CA123235 (p.Leu59Pro), CA8623175 (p.Val381Val), CA8623284 (p.Arg515Arg)

      gnomAD: MAF in the Ashkenazi Jewish population is 0.1565 https://gnomad.broadinstitute.org/variant/17-45360730-T-C for (p.Leu59Pro) and MAF in the East Asian population is 0.5857 https://gnomad.broadinstitute.org/variant/17-45368337-A-C for (p.Val381Val) and MAF in the East Asian population for (p.Arg515Arg) is 0.3455 https://gnomad.broadinstitute.org/variant/17-45369789-G-A

    1. Open aortic valve replacement in a patient with Glanzmann’sthrombasthenia: a multidisciplinary strategy to minimizeperioperative bleeding

      PMID: 23710629

      Genes: ITGA2B and/or ITGB3

      HGNC: 6138 and 6156

      InsufficientEvidence: Mention of proband with Glanzmann thrombasthenia however no variants in the proband are mentioned for ITGA2B and ITGB3

    1. Identificationofafunctionallyimportantsequenceinthecytoplasmictailofintegrinf33byusingcell-permeablepeptideanalogs

      PMID: 8876221

      Gene: ITGB3

      HGNC: 6156

      InsufficientEvidence: This article mentions variants in ITGB3; however, there are no Glanzmann thrombasthenia patients mentioned harboring these variants; therefore, there is insufficient evidence

    1. Labeling of the Internal Pool of GP IIb-IIIa in Platelets by c7E3 Fab Fragments (abciximab): Flow and Endocytic Mechanisms Contribute to the Transport

      PMID: 10029591

      Gene: ITGA2B and/or ITGB3

      HGNC: 6138 and 6156

      InsufficientEvidence: This article mentions a case report of a GT patient in another article; however, this article does not specifically mention any GT case reports

      PreviouslyPublished: PMID: 2180491 and PMID:

    1. PJ

      Case23: Patient PJ, gender, age and ethnicity not specified

      DiseaseAssertion: Glanzmann thrombasthenia type I

      FamilyInfo: N/A

      ParentalGenotype: N/A

      CasePresentingHPOs: N/A

      CaseHPOFreeText: Bleeding symptoms were evaluated by examining available hospital records. Mild bleeders were defined as those who had minor symptoms, such as epistaxis or gum bleeds, and moderate bleeders suffered, in addition, from bleeding complications after surgery and trauma. Severe bleeders were defined as those with a history of spontaneous or life-threatening hemorrhages, such as gastrointestinal bleeding, or who had repeated episodes requiring platelet transfusion. See Table 1.

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: See Table 6

      PlateletAggregation: See Table 6

      CasePreviousTesting: To ascertain the mutations, we sequenced the coding regions of the αIIb and β3 subunits including the exon/intron boundaries

      Gene: ITGA2B

      Variant: NM_000212.2:c.2068_2069delGT

      LegacyVariant: N/A

      ClinVar: N/A

      CAiD: CA913012619

      gnomAD: N/A

    2. GI

      Case21: Patient GI, gender, age and ethnicity not specified

      DiseaseAssertion: Glanzmann thrombasthenia type I

      FamilyInfo: N/A

      ParentalGenotype: N/A

      CasePresentingHPOs: N/A

      CaseHPOFreeText: Bleeding symptoms were evaluated by examining available hospital records. Mild bleeders were defined as those who had minor symptoms, such as epistaxis or gum bleeds, and moderate bleeders suffered, in addition, from bleeding complications after surgery and trauma. Severe bleeders were defined as those with a history of spontaneous or life-threatening hemorrhages, such as gastrointestinal bleeding, or who had repeated episodes requiring platelet transfusion. See Table 1.

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: See Table 6

      PlateletAggregation: See Table 6

      CasePreviousTesting: To ascertain the mutations, we sequenced the coding regions of the αIIb and β3 subunits including the exon/intron boundaries

      Gene: ITGB3

      Variant: NM_000212.2:c.1129dup

      LegacyVariant: N/A

      ClinVar: N/A

      CAiD: CA915940291

      gnomAD: N/A

  5. www.ncbi.nlm.nih.gov www.ncbi.nlm.nih.gov
    1. Integrin-Dependent Phosphorylation and Activation of the Protein Tyrosine Kinase pp125 FAr in Platelets

      PMID: 1385445

      Gene: ITGA2B and ITGB3

      HGNC: 6138 and 6156

      NoEvidence: This article does not mention Glanzmann thrombasthenia patients with variants in ITGA2B and/or ITGB3; therefore, there is no evidence to report

    1. Human endoglin as a potential new partner involved in platelet–endothelium interactions

      PMID: 29080903

      Gene: ITGA2B and ITGB3

      HGNC: 6138 and 6156

      NoEvidence: No mention of patients with Glanzmann thrombasthenia or variants in probands. This article is about endoglin, an adhesion molecule involved in the interaction between endothelial cells and platelets through intigren recognition

    1. αIIbβ3 variants defined by next-generation sequencing: Predicting variants likely to cause Glanzmann thrombasthenia

      PMID: 25827233

      Gene: ITGA2B and ITGB3

      HGNC: 6138 and 6156, respectively

      InsufficientEvidence: This article analyzed missense variants in the integrin αIIbβ3 receptor subunit genes ITGA2B and ITGB3 identified by WES comprising around 32,000 alleles from 16,108 individuals. There is no specific tie between variants and probands; therefore, there is insufficient evidence

    1. A genetic analysis of integrin function: Glanzmannthrombastheniain vitro

      PMID: 9050889

      Gene: ITGA2B and ITGB3

      HGNC: 6138 and 6156

      InsufficientEvidence: This article mentions ITGA2B/ITGB3 variants and has experimental evidence; however, no GT cases reports are mentioned here

      Note: Previously published articles are mentioned here, they have been tagged

    1. Successful unrelated donor cord blood transplantation for Glanzmann’s thrombasthenia Carrie L. Kitko Department of Pediatrics and Internal Medicine, Blood and Marrow Transplant Program, University of Michigan, Ann Arbor, MISearch for more papers by this author John E. Levine Department of Pediatrics and Internal Medicine, Blood and Marrow Transplant Program, University of Michigan, Ann Arbor, MISearch for more papers by this author Dana C. Matthews Department of Pediatrics, University of Washington, Seattle, WASearch for more papers by this author Paul A. Carpenter Department of Pediatrics, University of Washington, Seattle, WA Fred Hutchinson Cancer Research Center, Seattle, WA, USASearch for more papers by this author

      PMID: 19849809

      Gene: ITGA2B and/or ITGB3

      HGNC: 6138 and 6156

      InsufficientEvidence: This article mentions patients with GT however no variants in ITGA2B and/or ITGB3 are mentioned here

    1. female infant

      Case#: Female, at birth

      DiseaseAssertion: Glanzmann Thrombasthenia

      FamilyInfo: Figure 1 Consanguinity Mother: 27 yo. Positive for mutation. Epistaxis, hypochromic microcytic anemia, cesarean postoperative vaginal bleeding. Maternal aunt present with GT, Positive for mutation. Maternal cousin present with GT, Positive for mutation. Paternal cousins present with GT, Positive for mutation.

      ParentalGenotype: Both parents heterozygous carriers.

      CasePresentingHPOs: HP:0000978, Bruising susceptibility. HP:0000225, Gingival bleeding. HP:0003265, Neonatal hyperbilirubinemia. HP:0011869, Abnormal platelet function. HP:0004887, Respiratory failure requiring assisted ventilation. HP:0000967, Petechiae.

      PlateletAggregation: Normal coagulation. Reduced platelet function.

      CaseHPOFreeText: APGAR score 9. Spontaneous skin bruising. Started on feeds second day of life.

      ProteinExpression: Platelet function assays showed severely reduced activity.

      Gene: ITGB3

      Variant: p.Asp145Asn

      HGVS: NP_000203.2:p.Asp145Asn

      ClinVar: 627066

      CAID: CA400021939

      gnomAD: Absent

    1. F/16

      Case11: Female, 16 years old, Tamil Nadu India

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: N/A

      ParentalGenotype: N/A

      CasePresentingHPOs: HP:0000225, HP:0006298, HP:0031364

      (Gingival bleeding, prolonged bleeding after dental extraction, ecchymosis)

      CaseHPOFreeText: N/A

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: See Table 1 for values

      PlateletAggregation: See Table 1 for values

      CasePreviousTesting: PCR amplification of ITAG2B and ITGB3

      Gene: ITGB3

      Variant: NM_000212.2:c.1801T>G (p.Cys601Gly)

      LegacyVariant: (p.Cys575Gly)

      ClinVar: N/A

      CAiD: CA400032570

      gnomAD: N/A

    2. F/12

      Case10: Female, 12 years old, Tamil Nadu India

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: N/A

      ParentalGenotype: N/A

      CasePresentingHPOs: HP:0000225, HP:0006298

      (Gingival bleeding, prolonged bleeding after dental extraction)

      CaseHPOFreeText: N/A

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: See Table 1 for values

      PlateletAggregation: See Table 1 for values

      CasePreviousTesting: PCR amplification of ITAG2B and ITGB3

      Gene: ITGB3

      Variant: 330_336TCCCCAGdel is not showing up in CAR noting it as Unregistered

      LegacyVariant: N/A

      ClinVar: N/A

      CAiD: Unregistered

      gnomAD: N/A

    1. 1.Adult woman/France

      Case1: (Patient 1) Woman (adult), age not specific, France

      DiseaseAssertion: Glanzmann thrombasthenia (also have undergone deep vein thrombosis)

      FamilyInfo: N/A

      ParentalGenotype: N/A

      CasePresentingHPOs: N/A

      CaseHPOFreeText: Moderate bleeding according to Table 1

      CaseNotHPOs: N/A

      ProteinExpression: Trace amounts of residual alphaIIbbeta3 (this is all that was mentioned)

      Platelet Aggregation: Absent platelet aggregation (this is all that was mentioned)

      CasePreviousTesting: N/A

      Gene: ITGB3

      Variant: NM_000212.2:c.1448G>A (p.Cys483Tyr)

      LegacyVariant: (p.Cys457Tyr)

      ClinVar: N/A

      CAiD: CA400029324

      gnomAD N/A

      PreviouslyPublished: 12152649 and 21848888

    1. EFFECTS OF TICLOPIDINE ON MONOCLONAL ANTI-CD9 ANTIBODY-INDUCED PLATELET AGGREGATION AND MICROPARTICLE GENERATIO

      PMID: 1604445

      Gene: ITGA2B and ITGB3

      HGNC: 6138 and 6156, respectively as shown above

      NoEvidence: This article does not mention Glanzmann thrombasthenia probands with variants in ITGA2B and/or ITGB3; therefore, there is no evidence. In this study, they analyzed the effects of ticloplidine on anti-CD9 antibody-induced platelet aggregation as well as on the release of microparticles by platelets exposed to the antibodies in vitro.

    1. A new variant of Glanzmann's thrombasthenia with defective activation-dependent fibrinogen binding and altered expression of epitopes for several monoclonal antibodies against GP IIb-IIIa

      PMID: 21043690

      Gene: ITGA2B and/or ITGB3

      HGNC: 6138 and 6156

      InsufficientEvidence: This article mentions a GT patient LB with GT; however, no specific variants in ITGA2B and/or ITGB3 are mentioned in this patient therefore there is insufficient evidence

    1. The patient

      Case1: Female, 5 years old, Swiss (from Morocco)

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: Affected brother

      ParentalGenotype: Mother and father are heterozygous for the variant of interest

      CasePresentingHPOs: HP:0001250, HP:0001270, HP:0000967, HP:0001892

      (Seizures, retarded motor development, petechia, hemorrhagic diathesis)

      CaseHPOFreeText: Subepndymal hematomas, cortical tubera, hydrocephalus internus

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: Flow cytometry protein expression results can be seen in Figure 1

      PlateletAggregation: Platelets failed to aggregate with ADP, collagen, or arachidonic acid; however, ristocetin induced platelet agglutination was normal

      CasePreviousTesting: Amplified DNA fragments containing exon 11 of the GPIIIa gene were purified by PCR preps DNA purification resin and wizard.

      Gene: ITGB3

      Variant: NM_000212.2:c.1702T>C (p.Cys568Arg)

      LegacyVariant: (p.Cys542Arg)

      ClinVar: N/A

      CAiD: CA400032350

      gnomAD: N/A

    1. Evaluation of platelet surface glycoproteins in patients with Glanzmann thrombasthenia: Association with bleeding symptoms

      PMID: 28948953

      Gene: ITGA2B and ITGB3

      HGNC: 6138 and 6156

      NoEvidence: There are no probands with specific variants-- rather, in this article, 51 patients of Glaznmann thrombasthenia were diagnosed by platelet aggregation studies and were evaluated for the expression of CD41, CD61, CD42a and CD42b on platelet surface by flow cytometry. The association between the clinical phenotype based on bleeding score and GT subtype on flow cytometric evaluation was assessed.

    1. brother (3years younger) was quickly shown also to have both GT and MTP (Figure1A) with epistaxis the main cause of his bleedin

      Case2:

      DiseaseAssertion: Glanzmann Thrombesthenia and Macrothrombocytopenia (MTP)

      FamilyInfo: Case1 (his older sister) and no parental information.

      ParentalGenotype: N/A

      CasePresentingHPOs: HP:0000421, HP:0011877

      CaseHPOFreeText: N/A

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: No information for the brother on protein expression.

      CasePreviousTesting: As a part of an initial testing of this patient's gene panel (not specified which genes), DNA from this patient was submitted to ThromboGenetics in Cambridge UK. While confirming the two ITGB3 mutations described, an additional finding was a heterozygous mutation in TUBB1.

      Gene: ITGB3

      Variant: NM_000212.2:c.565C>T and NM_000212.2:c.629G>C

      LegacyVariant: N/A

      ClinVar: 2890

      CAiD: CA291224669 and CA400023389, respectively as written in variant section.

      gnomAD: Maximum allele frequency for the variant NM_000212.2:c.565C>T: 0.00002638 https://gnomad.broadinstitute.org/variant/17-45362012-C-T

    1. Sibling allogeneic bone marrow transplantationin a patient with type I Glanzmann’s thrombasthenia

      PMID: 9359503

      Gene: ITGA2B and/or ITGB3

      HGNC: 6138 and 6156

      InsufficientEvidence: This mentions a Glanzmann thrombasthenia patient; however, no variants in ITGA2B and/or ITGB3 are mentioned in this patient; therefore, we have insufficient evidence

    1. 4

      Case2: 9 years old, Female, Jewish Iraqi

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: N/A

      ParentalGenotype: N/A

      CasePresentingHPOs: HP:0004406

      (Recurrent epistaxis)

      CaseHPOFreeText: Mucocutaneous bleeding

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: All patients demonstrated lack of αIIbβ3 surface expression." No specifics are given on the percentage, but test was performed

      PlateletAggregation: Presented with mucocutaneous bleeding, absence of platelet aggregation in response to all physiological agonists in contrast to normal aggregation with ristocetin

      CasePreviousTesting: "Molecular analysis disclosed that patient 2 was homozygous for an out of frame mutation (c.2031–2041 del, exon 13) in ITGB3, and patient 4 was compound heterozygote for the same deletion and a large deletion of 11.2Kb del"

      Gene: ITGB3

      Variant: NM_000212.2:c.2031_2041del (p.Asp677Glufs) and 11.2Kb del (IVS9aluc.2183–6)

      LegacyVariant: N/A

      ClinVar: N/A and 13563

      CAiD: CA915940605 and NA

      gnomAD: N/A

    1. Antibody Removal Therapy Used Successfully at Delivery of a Pregnant Patient with Glanzmann’s Thrombasthenia and Multiple Anti-Platelet Antibodies

      PMID: 1949709

      Gene: ITGA2B and/or ITGB3

      HGNC: 6138 and 6156

      InsufficientEvidence: This mentions a Glanzmann thrombasthenia patient; however, no variants in ITGA2B and/or ITGB3 are mentioned in this patient; therefore, we have insufficient evidence

    1. Case 3

      Case3: Female, 8 years old, Japanese

      DiseaseAssertion: Thrombocytopenia

      FamilyInfo: Information on mother and grandfather available in Table 1(minimal information on other family members)

      ParentalGenotype: Mother: ITGB3 (p.Asp621_Glu660del heterozygous) See Table 1

      CasePresentingHPOs: HP:0000978 (Bruising)

      CaseHPOFreeText: Subaponeurotic hematoma

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: Surface expression levels of αIIbβ3 in platelets of patient were decreased to around 65% of normal subjects with increase of CD42b (See Table 1)

      PlateletAggregation: N/A

      CasePreviousTesting: Sequence analysis of DNA revealed the patient's mutation. RT-PCR was also performed. The entire coding sequence of exons and exon-intron boundaries of ITGA2B and ITGB3 and the whole coding regions of ITGA2B and ITGB3 cDNA obtained from platelets were sequenced.

      Gene: ITGB3

      Variant: NM_000212.2:c.2134+1G>A (p.Asp621_Glu660del)

      LegacyVariant: N/A

      ClinVar: N/A

      CAiD: CA400033344

      gnomAD: N/A

    1. Patient LD

      Case1: (Patient LD) Female, 3 years old, ethnicity not specified

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: See Fig 4 for family pedigree

      ParentalGenotype: Father is heterozygous for GC867-G and Mother is heterozygous for T882C (See Fig 4)

      CasePresentingHPOs: HP:0000967, HP:0031364, HP:0000978, HP:0000225

      (Petechiae, ecchymosis, bruising, gingival bleeding)

      CaseHPOFreeText: N/A

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: Fig 2A shows reduced expression (See Fig2A)

      PlateletAggregation: Platelets did not aggregate in response to ADP, epinephrine, or arachidonic acid and showed only shape change in response to collagen. Platelets did agglutinate with ristocetin.

      CasePreviousTesting: Genomic DNA was prepared from peripheral blood leukocytes and amplified by polymerase chain reaction (PCR) with Taq polymerase by using oligonucleotide primers from intronic flanking sequences of αIIb and β3. All exons of both genes were sequenced at least twice to exclude Taq errors.

      Gene: ITGB3

      Variant: NM_000212.2:c.863T>C (p.Leu288Pro) and NM_000212.2:c.847_848del

      LegacyVariant: (p.Leu262Pro)

      ClinVar: N/A

      CAiD: CA400024958 and CA8623068

      gnomAD: for c.847_848del https://gnomad.broadinstitute.org/variant/17-45364504-AGC-A

    1. Major mutations in calf-1 and calf-2 domains of glycoprotein IIb in patients with Glanzmann thrombasthenia enable GPIIb/IIIa complex formation, but impair its transport from the endoplasmic reticulum to the Golgi apparatus

      PMID: 12609844

      Gene: ITGA2B and/or ITGB3

      HGNC: 6138 and 6156

      InsufficientEvidence: This article mentions 2 major mutations in the calf-1 and calf-2 domains of ITGA2B. There are no specific Glanzmann thromasthenia patients mentioned that harbor these specific variants; therefore, there is insufficient evidence

    1. PLATELET TRANSFUSION IN A PATIENT AFFECTED BY GLANZMANN'STHROMBASTHENIA WITH ANTIBODIES AGAINST GPIIb-IIIa

      PMID: 9107089

      Gene: ITGA2B and/or ITGB3

      HGNC: 6138 and 6156

      InsufficientEvidence: This mentions a Glanzmann thrombasthenia patient; however, no variants in ITGA2B and/or ITGB3 are mentioned in this patient; therefore, we have insufficient evidence

    1. Diagnosis of platelet function disorders: A standardized, rational, and modular flow cytometric approach

      PMID: 29227167

      Gene: ITGA2B and ITGB3

      HGNC: 6138 and 6156

      NoEvidence: This article is about developing a standardized and modular flow cytometric approach, that contributes to clarify impaired platelet function in a rational step by step manner. There is no mention of variants in probands for ITGA2B or ITGB3

    1. Glanzmann's Thrombastenia: The Role of Tranexamic Acid in Oral Surgery

      PMID: 30254767

      Gene: ITGA2B and/or ITGB3 (Proband diagnosed with Gt therefore these genes may be involved here)

      HGNC: 6138 and 6156

      InsufficientEvidence: Proband with Glanzmann Thrombasthenia described here however no mention of variants therefore insufficient evidence

    1. BlockingPlateletAggregationInhibitsThromboxaneA2FormationbyLowDoseAgonistsButDoesNotInhibitPhosphotylationandActivationofCytosolicPhospholipaseA2.

      PMID: 9361365

      Gene: ITGA2B and/or ITGB3

      HGNC: 6138 and 6156, respectively

      NoEvidence: This article does not mention Glanzmann thrombasthenia patients/probands with variants in ITGA2B and/or ITGB3. In this study, they made use of Ro 44-9883 as a potent non-peptide GPIIb/IIIa antagonist to address the relationship of platelet aggregation to PLA2 activation, TxA2 formation, and granule secretion.

    1. 3/M

      Case#: Patient ID 7, Male 3 years old. North Indian

      Disease: Glazmann's Thrombasthenia

      CasePresentingHPOs: HP:0003540, HP:0000421, HP:0031364

      Impaired platelet aggregation, Epistaxis, Ecchymosis

      PlateletAgreggation: LTA with ADP, Epi, Coll, AA, and Ristocetin: Impaired with all except Ristocetin

      FamilyInfo: Brother affected confirmed GT.

      GenotypingMethod: Next generation sequencing. Sanger sequencing used to confirm pathogenic variants

      ClinVar: 1691487

      CAID: CA400029054

      Variant: NM_000212.3:c.1388G>C

      GnomAD: NA

      ExpressionEvidence:Flow Cytometry for platelet expression of GPIIb/IIIa in CD41a .5% and CD61 1.7%.

    1. Mechanistic Insights from a Refined Three-dimensionalModel of IntegrinIIb3*

      PMID: 15056669

      Gene: ITGA2B and ITGB3

      HGNC: 6138 and 6156

      InsufficientEvidence: This article mentions Glanzmann thrombasthenia variants; however, no patients with GT are mentioned with these variants therefore we have insufficient evidence

    1. Critical Residues of IntegrinaIIb Subunit for Binding ofaIIbb3(Glycoprotein IIb-IIIa) to Fibrinogen and Ligand-mimeticAntibodies (PAC-1, OP-G2, and LJ-CP3)*

      PMID: 8702512

      Gene: ITGA2B and/or ITGB3

      HGNC: 6138 and 6156

      InsufficientEvidence: This article mentions variants in ITGA2B and/or ITGB3; however, there are no Glanzmann thrombasthenia case reports mentioned in this article therefore we have insufficient evidence

    1. VI:5

      Case#: Male, Saudi

      Disease: Glazmann's Thrombasthenia, 9 affected family members including proband. Figure 1.

      Family: Large six-generation consanguineous

      CasePresentingHPOs: HP:0000978, HP:0001892

      Bruising susceptibility, Abnormal bleeding

      PlateletAgreggation: No platelet aggregation to adenosine-di-phosphate, epinephrine, collagen, and arachidonic acid

      GenotypingMethod: Wide Exome sequencing identified pathogenic mutation. Sanger sequencing validated segregation of mutation in family.

      ClinVar: 953051

      CAID:CA8623443

      Variant: NM_000212.3:c.2113del

      GnomAD: East Asian at rate of (0.0001087) 2/18394

      ExpressionEvidence: Affected individuals were found negative for CD41 and CD61 surface antigens; however, CD42a and CD42b antigens were found positive. Used to test presence and absence of integrin αIIbβ3 complex

    1. 9-year-old boy

      Case1: Male, 9 years old,

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: One brother, with no signs of bleeding diathesis

      ParentalGenotype: Father is heterozygous for the c.2268C>T mutation and the mother is compound heterozygous with the c.2268C>T variant and c.2330C>T variant

      CasePresentingHPOs: HP:0000421 Epistaxis

      CaseHPOFreeText: Submucosal bleeding, hematomas, excessive achilles tendon bleeding

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: The patient's αIIbβ3 receptor count was estimated approximately 50% of that measured in a healthy age-matched control by quantitative flow cytometry

      PlateletAggregation: Complete absense of platelet aggregation in response to ADP, arachidonic acid, epinephrine, collagen

      CasePreviousTesting: Direct sequencing of the patients αIIb and β3 genes was perforemed

      Gene: ITGB3

      Variant: NM_000212.2:c.2248C>T (p.Arg750Ter)

      LegacyVariant: (p.Arg724Ter)

      ClinVar: 13564

      CAiD: CA123246 (p.Arg750Ter)

      gnomAD: N/A

    1. Thalidomide for the Treatment of Gastrointestinal Bleeding Due to Angiodysplasia in a Patient with Glanzmann’s Thrombasthenia

      PMID: 28670433

      Gene: ITGA2B and ITGB3

      HGNC: 6138 and 6156

      InsufficientEvidence: This article describes a proband with Glanzmann thrombasthenia; however, there is no mention of variants in ITGA2B and ITGB3 in this proband.

    1. Glanzmann's Thrombasthenia Diagnosed following Knee Arthroscopy

      PMID: 26000186

      Gene: Patient could have variation in ITGA2B or ITGB3, article does not specify; however, patient has GT so it is implied one of the two genes is involved

      HGNC: 6138 and 6156

      InsufficientEvidence: This article mentions a proband who was diagnosed with Glanzmann thrombasthenia; however, there is no mention of variants in ITGA2B or ITGB3 in this patient; therefore, we have insufficient evidence

    1. The patient

      Case1: Female, 21 years old, ethnicity not specified

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: Blood samples collected from brother, no other information provided

      ParentalGenotype: Father heterozygous: NM_000419.3:c.258G>C and mother heterozygous: NM_000419.3:c.2334A>C

      CasePresentingHPOs: HP:0000421, HP:0000979

      (Epistaxis, purpura)

      CaseHPOFreeText: N/A

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: Flow cytometry analysis and western blot analysis showed a remarkable reduction in aIIb b3 and aIIb, and a moderate reduction in b3 in the platelets of the patient (data not shown)

      PlteletAggregation: N/A

      CasePreviousTesting: Nucleotide sequences of aIIb cDNA and b3 cDNA amplified by reverse transcription polymerase chain reaction (RT-PCR) were analyzed

      Gene: ITGA2B

      Variant: NM_000419.3:c.258G>C (p.Leu86Pro) and NM_000419.3:c.2334A>C

      LegacyVariant: N/A

      ClinVar: N/A

      CAiD: CA500624524 and CA399796662

      gnomAD: N/A

    1. Total Extraction as a Treatment for Anaemia in a Patient of Glanzmann’s Thrombasthenia with Chronic Gingival Bleed: Case Report

      PMID: 26894187

      Gene: ITGA2B and/or ITGB3 (Article does not explicitly state these genes; however, patient has Glanzmann thrombasthenia so these two genes are implied)

      HGNC: 6138 and 6156

      InsufficientEvidence: This article mentions a case report of an 18 year old male patient with Glanzmann thromasthenia; however, there are no variants in ITGA2B or ITGB3 that are mentioned here

    1. A systematic review of the management and outcomes ofpregnancy in Glanzmann thrombasthenia

      PMID: 21457404

      Genes: ITGA2B and ITGB3

      HGNC: 6138 and 6156

      Insufficient Evidence: This article reports the results of a systematic review of management and outcome data contained within all published descriptions of pregnancy in GT. Probands with GT are mentioned; however, no variants are mentioned.

    1. INHERITEDDEFECTS OFPLATELETFUNCTION

      PMID: 11844132

      Gene: ITGA2B and/or ITGB3

      HGNC: 6138 and 6156

      InsufficientEvidence: This article mentions variants in ITGA2B and ITGB3; however, there are no specific Glanzmann thrombasthenia patients with the mentioned variants; therefore, there is insufficient evidence

    1. Carrier Detection in Glanzmann ThrombastheniaComparison of Flow Cytometry and Western Blot With Respect to DNA Mutation

      PMID: 18550477

      Gene: ITGA2B and/or ITGB3

      HGNC: 6138 and 6156

      InsufficientEvidence: This article mentions probands with GT; however, the probands are clumped together, and variants are not specifically tied to probands

    1. Concomitant occurrence of mucopolysaccharidosis IIIB and Glanzmann's thrombasthenia. Further

      PMID: 1606713

      Gene: ITGA2B and/or ITGB3

      HGNC: 6138 and 6156

      InsufficientEvidence: This article mentions a Glanzmann thrombasthenia patient and family members of the patient; however, there is no mention of variants in ITGA2B and/or ITGB3; therefore, there is insufficient evidence