7 Matching Annotations
  1. Oct 2026
    1. 6FL

      Case6: Patient FL (found in the GT database) gender and age are not specified

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: N/A

      ParentalGenotype: N/A

      CasePresentingHPOs: HP:0000978, HP:0006298 Bruising and prolonged bleeding after tooth extraction

      CaseHPOFreeText: N/A

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: 7-10% GPIIIa and GPIIb surface expression

      PlateletAggregation: N/A

      CasePreviousTesting: N/A

      Gene: ITGA2B

      Variant: NM_000419.3:c.1063G>A (p.Glu355Lys)

      LegacyVariant: (p.Glu324Lys)

      ClinVar: 2899

      CAiD: CA115844

      gnomAD: MAF in the European (non-Finnish) population is 0.00001978 https://gnomad.broadinstitute.org/variant/17-42461008-C-T

      PreviouslyPublished: Reference 17 in this article

    1. GT5

      Case5: (GT5) Female, 55 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: ITGA2B

      Variant: NM_000419.3:c.1063G>A (p.Glu355Lys)

      LegacyVariant: (p.Glu324Lys) (The paper gives legacy and current nomenclature)

      ClinVar: 2899

      CAiD: CA115844

      gnomAD MAF in the European (non-Finnish) population is 0.00001978 https://gnomad.broadinstitute.org/variant/17-42461008-C-T

    1. Case report The patient is a 5‐year‐old son of non‐consaguinous Swiss parents

      Case1: Male, 5 years old, Swiss

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: Family pedigree provided in Figure 1- blood samples for the study were obtained from the patient, his parents and 5 other members of his family and none of the other studied family members have experienced abnormal bleeding

      ParentalGenotype: Studied and no mutation detected

      CasePresentingHPOs: N/A

      CaseHPOFreeText: Frequent mucocutaneous bleeding with transfusion being required shortly after birth

      CaseNotHPOs: N/A

      CaseNotHPOFreeText: N/A

      ProteinExpression: <2% of the normal platelet content of GPIIb-IIIa as determined by flow cytometry

      PlateletAggregation: Absence of platelet aggregation in response to ADP, epinephrine, thrombin and collagen; however, normal platelet agglutination with ristocetin

      CasePreviousTesting: Using a PCR‐SSCP procedure and direct sequence analysis of PCR‐amplified DNA fragments, we have examined all exons and splice sites of the GPIIb and GPIIIa genes

      Gene: ITGA2B

      Variant: NM_000419.3:c.1063G>A (p.Glu355Lys) and NM_000419.3:c.1787T>C (p.Ile596Thr)

      LegacyVariant: (p.Glu324Lys) and (p.Ile565Thr)

      ClinVar: 2899 and 2900, respectively

      CAiD: CA115844 and CA115846, respectively

      gnomAD: MAF in the European (non-Finnish) population is 0.00001978 https://gnomad.broadinstitute.org/variant/17-42461008-C-T and the MAF in the European (non-Finnish) population is 0.0001325 https://gnomad.broadinstitute.org/variant/17-42457148-A-G

    1. 3.Adult woman/Algeria

      Case2: (Patient 3) Female (adult), age not specified, Algeria

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: N/A

      ParentalGenotype: N/A

      CasePresentingHPOs: N/A

      CaseHPOFreeText: Severe bleeding when she was a child

      CaseNotHPOs: N/A

      ProteinExpression: Absent surface expression of alphaIIbbeta3

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

      CasePreviousTesting: N/A

      Gene: ITGA2B

      Variant: NM_000419.3:c.1063G>A (p.Glu355Lys)

      LegacyVariant: (p.Glu324Lys)

      ClinVar: 2899

      CAiD: CA115844

      gnomAD MAF in the European (non-Finnish) population is 0.00001978 https://gnomad.broadinstitute.org/variant/17-42461008-C-T

      PreviouslyPublished: PMID: 12362239 and 23346430

    1. The proband was a 2‐year‐old man

      Case1: Male. 2 years old, Gypsy

      DiseaseAssertion: Glanzmann's thrombasthenia

      FamilyInfo: See Fig 3 and 4 for family pedigree

      ParentalGenotype: Parents are heterozygous for the variant of interest

      CasePresentingHPOs: N/A

      CaseHPOFreeText: Mucocutaneous hemorrhages and spontaneous bruising

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: Protein expression results can be found in Table 1

      PlateletAggregation: Platelets aggregated in response to agonists although they reacted positively to ristocetin (See Case History section for this sentence

      CasePreviousTesting: Analyzed the amplification of products of all exons of GPII and their intronic flanking regions by single stranded conformational polymorphism analysis. All GPIIIa exons were also analyzed by SSCP and gave results identical to controls

      Gene: ITGA2B

      Variant: NM_000419.3:c.1063G>A (p.Glu355Lys)

      LegacyVariant: N/A

      ClinVar: 2899

      CAiD: CA115844

      gnomAD: MAF in the European (non-Finnish) population is 0.00001978 http://gnomad.broadinstitute.org/variant/17-42461008-C-T

    1. 56-year-old Algerian woman

      Case1: Female, 56 years old, Algerian

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: N/A

      ParentalGenotype: N/A

      CasePresentingHPOs: HP:0004406, HP:0000132

      (Recurrent epistaxis, menorrhagia)

      CaseHPOFreeText: N/A

      CaseNotHPOs: N/A

      CaseNotHPOsFreeText: N/A

      ProteinExpression: No platelet αIIbβ3 expression (mentioned briefly in abstract)

      PlateletAggregation: The patient shows all the typical signs of GT with no platelet aggregation in response to physiologic agonists and an absence of clot retraction. No mention of ristocetin

      CasePreviousTesting: N/A

      Gene: ITGA2B

      Variant: NM_000419.3:c.1063G>A (p.Glu355Lys)

      LegacyVariant: p.Glu324Lys

      ClinVar: 2899

      CAiD: CA115844

      gnomAD: MAF in European (non-Finnish population 0.00001978 http://gnomad.broadinstitute.org/variant/17-42461008-C-T

      PreviouslyPublished: Proband 9 in PMID: 2180491

    1. 2

      Case2: Female, 67 years old, Japanese

      DiseaseAssertion: Glanzmann thrombasthenia

      FamilyInfo: N/A per Table 1

      ParentalGenotype: N/A

      CasePresentingHPOs: N/A

      CaseHPOFreeText: Prolonged ivy bleeding times, bleeding diathesis since early childhood

      CaseNotHPOs: N/A

      CaseNotHPOFreeText: N/A

      ProteinExpression: Surface expression of αIIbβ3 was analyzed by flow cytometry which was < 5% of normal

      PlateletAggregation: Aggregation in response to ADP, epinephrine and collagen was absent but normal in response to ristocetin

      CasePreviousTesting: Nucleotide sequences of the αIIb and β3 coding regions were determined by direct sequencing of RT-PCR products from platelet RNA.

      Gene: ITGA2B

      Variant: NM_000419.3:c.1063G>A (p.Glu355Lys)

      LegacyVariant: (p.Glu324Lys)

      ClinVar: 2899

      CAiD: CA115844

      gnomAD: MAF in the European (non-Finnish) population is 0.00001978 https://gnomad.broadinstitute.org/variant/17-42461008-C-T