Case13: Patient Chinese10 (can be found in the GT database) gender and age are not specified

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: N/A

ParentalGenotype: N/A

CasePresentingHPOs: HP:0000421, HP:0000225, HP:0000132, HP:0000979, HP:0000967 (Epistaxis, gingival bleeding, menorrhagia, purpura/petechiae)

CaseHPOFreeText: N/A

CaseNotHPOs: N/A

CaseNotHPOsFreeText: N/A

ProteinExpression: <2% GPIIIa and GPIIb surface expression

PlateletAggregation: N/A

CasePreviousTesting: N/A

Gene: ITGA2B

Variant: NM_000419.3:c.1750C>T (p.Arg584Ter) authors state they could not find the second variant

LegacyVariant: N/A

ClinVar: 2892

CAiD: CA115834

gnomAD: MAF in the East Asian population is 0.0002176 for the Arg584Ter variant

PreviouslyPublished: Reference number 23 in this article

Case25: "Cam"

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: N/A

ParentalGenotype: N/A

CasePresentingHPOs: HP:0000421, HP:0000225

(Epistaxis, gingival bleeding)

CaseHPOFreeText: N/A

CaseNotHPOs: N/A

CaseNotHPOsFreeText: N/A

ProteinExpression: >20,000/platelet +/- Ca2+

PlateletAggregation: N/A

CasePreviousTesting: N/A

Gene: ITGB3

Variant: NM_000212.2:c.433G>T (p.Asp145Tyr)

LegacyVariant: N/A

ClinVar: 13554

CAiD: CA123226

gnomAD: N/A

PreviouslyPublished: References 41,42

Case34: Patient LD

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: N/A

ParentalGenotype: N/A

CasePresentingHPOs: N/A

CaseHPOFreeText: N/A

CaseNotHPOs: N/A

CaseNotHPOsFreeText: N/A

ProteinExpression: 30% GPIIIa and GPIIb surface expression

PlateletAggregation: N/A

CasePreviousTesting: N/A

Gene: ITGB3

Variant: NM_000212.2:c.847del and NM_000212.2:c.863T>C

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA915940765 and CA400024958

gnomAD: N/A

PreviouslyPublished: Reference 56

PMID: 9215749

Gene: ITGA2B and ITGB3

HGNC: 6138 abd 6156

Case24: Pakistan

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.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

PreviouslyPublished: Reference number 28

Case3: Patient 3, Female, 16 years old

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: Affected sister is Patient 4

ParentalGenotype: N/A (Not consanguineous Caucasians, showed no increased bleeding tendency)

CasePresentingHPOs: HP:0000967, HP:0000225, HP:0000132

(Petechiae, gingival bleeding, menorrhagia)

CaseHPOFreeText: Hematomas, prolonged in vitro bleeding time

CaseNotHPOs: N/A

CaseNotHPOsFreeText: N/A

ProteinExpression: Flow cytometry analysis revealed that there was 580 of GPIIb/IIIa expression for Patient 3

PlateletAggregation: All patients' platelets showed severely reduced platelet aggregation after stimulation with collagen and ADP in contrast to the normal range (See Table 1). Stimulation with epinephrine and arachidonic acid also demonstrated decreased platelet aggregation.

CasePreviousTesting: Sequenced ITGA2B and ITGB3 genes from one patient of each family (Patient 2 and 3) and Patient 1 and 4 were screened for the identified mutation in the corresponding family.

Gene: ITGA2B

Variant: NM_000419.3:c.1787T>C (p.Ile596Thr)

LegacyVariant: N/A

ClinVar: 2900

CAiD: CA115846

gnomAD: MAF in the European (non-Finnish) population is 0.0001325 http://gnomad.broadinstitute.org/variant/17-42457148-A-G

PMID: 12812388

Gene: ITGA2B and/or ITGB3

HGNC: 6138 and 6156

InsufficientEvidence: This article mentions a 34 year old proband with GT; however, there is no mention of variants in ITGA2B and/or ITGB3 in the proband that is mentioned

Case1: 54 year old, Female

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: N/A

ParentalGenotype: N/A

CasePresentingHPOs: HP:0003540, HP:0031126

(Defective platelet aggregation, impaired clot retraction)

CaseHPOFreeText: N/A

CaseNotHPOs: N/A

CaseNotHPOsFreeText: N/A

ProteinExpression: Flow cytometry showed significantly reduced (6-7%) surface expression levels of both aplhaIIb and beta3.

PlateletAggregation: Light transmission aggregometry in platelet-rich plasma demonstrated an impaired platelet aggregation with all agonists (arachidonic acid, thromboxane receptor agonist U46619, ADP, collagen, epinephrine) except ristocetin.

CasePreviousTesting: N/A

Gene: ITGB3

Variant: NM_000212.2:c.1407dup (p.Asn470Ter) and NM_000212.2:c.1814G>A (p.Gly605Asp)

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA400032596 (p.Gly605Asp) and CA915940250 (p.Asn470Ter)

gnomAD: N/A

PMID: 16359515

Gene: ITGA2B

HGNC: 6138

Case3: Patient 3, diagnosed at 21 years, gender and ethnicity not specified

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: 2 affected aunts died of bleeding complications before 10 years of age

ParentalGenotype: N/A

CasePresentingHPOs: HP:0000225

(Gingival bleeding)

CaseHPOFreeText: N/A

CaseNotHPOs: N/A

CaseNotHPOsFreeText: N/A

ProteinExpression: Immunoblot analysis of platelet lysates showed no detectable pro-αIIb or mature αIIb in any of the patient samples. Trace amounts of Beta3 were detected in samples from this patient

PlateletAggregation: Absent in vitro platelet aggregation in response to ADP, epinephrine, and collagen but a normal initial phase response to ristocetin

CasePreviousTesting: Polymerase chain reaction (PCR), single strand conformation polymorphism (SSCP) analysis, and DNA sequencing was performed for ITGA2B

Gene: ITGA2B

Variant: NM_000419.3:c.1162G>A (p.Gly388Ser)

LegacyVariant: p.Gly357Ser

ClinVar: N/A

CAiD: CA8603212

gnomAD: N/A (This variant is not in gnomAD but is in ExAC)

Case20: 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:0031364, HP:0000132

(Epistaxis, gingival bleeding, ecchymosis, menorrhagia)

CaseHPOFreeText: Larynx bleeding, 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

Case5: 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:0000225, HP:0002573

(Gingival bleeding, rectal bleeding)

CaseHPOFreeText: Post-partum 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

Case7: 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

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

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

Case3: 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:0030137, HP:0000421, HP:0000225, HP:0031364, HP:0002249

(Prolonged bleeding following circumcision, epistaxis, ecchymosis, melena)

CaseHPOFreeText: Haematemesis

CaseNotHPOs: N/A

CaseNotHPOsFreeText: N/A

ProteinExpression: N/A

CasePreviousTesting: N/A

Gene: ITGB3

Variant: HGVS nomenclature not available. p.Val721Cysfs*33

LegacyVariant: p.Val695Cysfs*33

ClinVar: 13563

CAiD: N/A

gnomAD: N/A

2:20-3:30

Case19: 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: Intra-cerebral post-trauma

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

Case3: (GT54), Gender, age and ethnicity not reported

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: 1 sister that are heterozygous for g.951G>A and p.Leu343Pro

ParentalGenotype: Father: heterozygous for g.951G>A and p.Leu343Pro and Mother: heterozygous for both just like dad

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: ITGA2B

Variant: NC_000017.11:g.44393555C>T (g.951G>A promoter variant) and NM_000419.3:c.1028T>C (p.Leu343Pro)

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA913189168 (promoter variant) and CA399804619 (p.Leu343Pro)

gnomAD N/A

Case34: (GT15) Gender, age and ethnicity have not been specified

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: N/A

ParentalGenotype: Mother and father are heterozygous for this mutation

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: ITGA2B

Variant: NM_000419.3:c.1753-1G>A

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA399802017

gnomAD N/A

Case16: (GT28) Gender, age and ethnicity is not reported

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: Sister is heterozygous for the mutation

ParentalGenotype: Mother and father are both heterozygous for the mutation

CasePresentingHPOs:

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.1031A>G (p.Tyr344Cys)

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA400025816

gnomAD N/A

Case13: (GT9) 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.356G>A (p.Arg119Gln)

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA8622925

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

Case11:(GT37) 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: ITGA2B

Variant: NM_000419.3:c.1234G>A (p.Gly412Arg)

LegacyVariant: N/A

ClinVar: 381748

CAiD: CA8603182

gnomAD MAF in the Latino population is 0.0001453 https://gnomad.broadinstitute.org/variant/17-42458406-C-T

Case27: (GT51) Gender, age and ethnicity are 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: ITGA2B

Variant: NM_000419.3:c.3115_3119dup

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA915940262

gnomAD N/A

Case29: (GT11) Gender, age and ethnicity are 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.2217del

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA915940690

gnomAD N/A

Case19: (GT53) Gender, age and ethnicity not specified

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: Has a sister who does not have either of the 2 mutations (normal)

ParentalGenotype: Father: Does not have the Asp139His mutation but is heterozygous for the Tyr141Cys mutation. Mother: Heterozygous for the Asp139His mutation and is normal or does not harbor the Tyr141Cys mutation

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: NG_008332.2:g.35655G>C (p.Asp139His) and NM_000212.2:c.422A>G (p.Tyr141Cys)

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA400021843 and CA40002188, respectively as shown above

gnomAD N/A

Case8: (GT68) 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: ITGA2B

Variant: NM_000419.3:c.641T>C (p.Leu214Pro)

LegacyVariant: N/A

ClinVar: 2901

CAiD: CA115848

gnomAD N/A

PMID: 12353868

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

PMID: 24418945

Gene: ITGA2B

HGNC: 6138

Supplementary Table S1 & S2 Proband and Variant Information:

Case70: GT74, Female, 14 years old, French

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: N/A

ParentalGenotype: N/A

CasePresentingHPOs: HP:0002239, HP:0002249

(GI bleeding, melena)

CaseHPOFreeText: Serious mouth bleeding, post traumatic heavy bruising, heavy bleeding after adenoid removal

CaseNotHPOs: N/A

CaseNotHPOsFreeText: N/A

ProteinExpression: Flow cytometry showed less than 5% αIIbβ3 (See Supplementary Table 1)

PlateletAggregation: Absent platelet aggregation (See Supplementary Table 1)

CasePreviousTesting: Sanger sequencing of ITGA2B and ITGB3

Gene: ITGA2B

Variant: NM_000419.3:c.1214T>C (p.Ile405Thr) and NM_000419.3:c.1440-13_1440-1del (p.Arg480Serfs*106)

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA290950815 and CA913184940

gnomAD: N/A

Supplementary Table S1 & S2 Proband and Variant Information:

Case30: GT34, Male, 15 years old, US

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: N/A

ParentalGenotype: N/A

CasePresentingHPOs: HP:0000421, HP:0002239

(Epistaxis, 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: ITGA2B

Variant: NM_000419.3:c.1553T>A (p.Ile518Asn) and NM_000419.3:c.1946+3G>T

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA8603038 and CA626121071

gnomAD: MAF in the European (non-Finnish) is 0.000008790 http://gnomad.broadinstitute.org/variant/17-42457661-A-T and MAF in the African population is 0.000 http://gnomad.broadinstitute.org/variant/17-42456008-C-A

Supplementary Table S1 & S2 Proband and Variant Information:

Case11: GT12, Female, 61, French

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: Brother (died at birth) this is all the information Supp table S1 gives

ParentalGenotype: N/A

CasePresentingHPOs: HP:0000421, HP:0000978, HP:0000790

(Epistaxis, easy bruising, hematuria)

CaseHPOFreeText: Heavy bleeding and menarche

CaseNotHPOs: N/A

CaseNotHPOsFreeText: N/A

ProteinExpression: Flow cytometry showed <5% variant 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.565C>T (p.Pro189Ser)

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA291224669

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

Supplementary Table S1 & S2 Proband and Variant Information:

Case25: GT28, Male, 36, French/Syrian

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: Affected sister (See Supplemental Table 1)

ParentalGenotype: N/A

CasePresentingHPOs: N/A

CaseHPOFreeText: N/A

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: ITGA2B

Variant: "LR Dup" (See Supplementary Table 1)

LegacyVariant: N/A

ClinVar: N/A

CAiD: N/A

gnomAD: N/A

Supplementary Table S1 & S2 Proband and Variant Information:

Case59: GT61, Female, 49 years old, French/Italian

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: N/A

ParentalGenotype: N/A

CasePresentingHPOs: HP:0000978, HP:0000132

(Easy bruising, menorrhagia)

CaseHPOFreeText: Tonsil bleeding

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.224del

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA8622899

gnomAD: MAF in the European (non-Finnish) population is 0.000008795 https://gnomad.broadinstitute.org/variant/17-45360777-TG-T

Supplementary Table S1 & S2 Proband and Variant Information:

Case34: GT36b, Male, 60 years old, Spanish

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: Affected sisters who are proband 36a and 36c in this study

ParentalGenotype: N/A

CasePresentingHPOs: HP:0004406

(Recurrent epistaxis)

CaseHPOFreeText: Embolism of the submaxillary artery

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: ITGA2B

Variant: NM_000419.3:c.131G>T (p.Gly44Val) and NM_000419.3:c.1440-13_1440-1de (p.Arg480Serfs*106)

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA399806881 and CA913184940

gnomAD: N/A

Supplementary Table S1 & S2 Proband and Variant Information:

Case66: GT69, Female, 32 years old, French

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: N/A

ParentalGenotype: N/A

CasePresentingHPOs: HP:0000978, HP:0000979, HP:0004406, HP:0000132, HP:0004846

(Bruising, purpura, recurrent epistaxis, menorrhagia, prolonged bleeding after surgery)

CaseHPOFreeText: N/A

CaseNotHPOs: HP:0006298 (Prolonged bleeding after dental extraction)

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: ITGA2B

Variant: NM_000419.3:c.1878G>C (p.Gln626His)

LegacyVariant: N/A

ClinVar: 2903

CAiD: CA115852

gnomAD: N/A

Supplementary Table S1 & S2 Proband and Variant Information:

Case32: GT35b, Female, 16 years old, USA

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: Affected sister who is 35a in this study (See Supplementary Table S1)

ParentalGenotype: N/A

CasePresentingHPOs: HP:0000421, HP:0002239

(Epistaxis, 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: ITGA2B and ITGB3

Variant: ITGB3: NM_000212.2:c.392G>C (p.Arg131Pro) and NM_000212.2:c.777+1G>A ITGA2B: NM_000419.3:c.2264G>A (p.Arg755Gln)

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA8622954, CA8623036, CA8602771

gnomAD: MAF in the African population is 0.00006152 http://gnomad.broadinstitute.org/variant/17-45361839-G-C, MAF in the Latino population is 0.0006774 http://gnomad.broadinstitute.org/variant/17-45363789-G-A, MAF in the Latino population is 0.0001903 http://gnomad.broadinstitute.org/variant/17-42454380-C-T

Supplementary Table S1 & S2 Proband and Variant Information:

Case5: GT6, Female, 19, French/Algerian

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: N/A

ParentalGenotype: N/A

CasePresentingHPOs: HP:0000978 and HP:0000225

(Easy bruising, gingival bleeding)

CaseHPOFreeText: Severe bleeding

CaseNotHPOs: N/A

CaseNotHPOsFreeText: N/A

ProteinExpression: Flow cytometry showed <5% expression of αIIbβ3

PlateletAggregation: Absent platelet aggregation (See Supplementary Table 1)

CasePreviousTesting: Sanger sequencing of ITGA2B and ITGB3

Gene: ITGB3

Variant: NM_000212.2:c.940G>T (p.Asl314Tyr)

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA400025612

gnomAD: N/A

Supplementary Table S1 & S2 Proband and Variant Information:

Case16: GT19, Female, 44, French (Gypsy)

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: Brother and cousin are other affected family members (This is all the information we are given, see Supplementary Table 1)

ParentalGenotype: N/A

CasePresentingHPOs: HP:0000978, HP:0000132, HP:0000421, HP:0000225

(Easy bruising, menorrhagia, epistaxis, gingival 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: ITGA2B

Variant: NM_000419.3:c.1544+1G>A (p.Val513Leufs*71)

LegacyVariant: N/A

ClinVar: 2895

CAiD: CA10575473

gnomAD: N/A

Supplementary Table S1 & S2 Proband and Variant Information:

Case24: GT27, Female, 84 at death, French

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: N/A

ParentalGenotype: N/A

CasePresentingHPOs: HP:0031364, HP:0002239

(Ecchymosis, GI bleeding)

CaseHPOFreeText: Bleeding following 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: ITGA2B

Variant: NM_000419.3:c.1413C>G (p.Tyr471Ter) and NM_000419.3:c.2468G>A (p.Gly823Glu)

LegacyVariant: N/A

ClinVar:

CAiD: CA290950376 and CA399795351

gnomAD: MAF in the European (non-Finnish) population 0.000008791 http://gnomad.broadinstitute.org/variant/17-42457994-G-C MAF in African population is 0.000 http://gnomad.broadinstitute.org/variant/17-42453334-C-T

Supplementary Table S1 & S2 Proband and Variant Information:

Case61: GT64, Female, 26 years old, French

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: N/A

ParentalGenotype: N/A

CasePresentingHPOs: HP:0000421, HP:0000978, HP:0000132, HP:0000225, HP:0031364

(Epistaxis, easy bruising, menorrhagia, gingival bleeding, ecchymosis)

CaseHPOFreeText: Mouth and tonsil bleeding

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: ITGA2B

Variant: NM_000419.3:c.257T>C (p.Leu86Pro) and NM_000419.3:c.1440-13_1440-1del

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA290956162 and CA913184940

gnomAD: N/A

Case38: (GT-48) Male, age or ethnicity not specified

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: Proband GT45-GT48 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: ITGA2B

Variant: NM_000419.3:c.1879-2A>G

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA290949031

gnomAD: N/A

Case16: (GT-18) Female, carrier status, age or ethnicity not specified

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: Probands GT15-GT20 are related to GT-18 see Table 1

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

CasePresentingHPOs: N/A

CaseHPOFreeText: Bleeding severity: Information not available on bleeding phenotype/severity (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

Case55: (GT-74) Male, 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.437T>C (p.Leu146Pro)

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA400021960

gnomAD: N/A

Case8: (GT-09) Male, age or ethnicity not specified

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: Probands 1-8 are related to GT-09 see Table 1

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

CasePresentingHPOs: N/A

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

CaseNotHPOs: N/A

CaseNotHPOsFreeText: N/A

ProteinExpression: Flow cytometry results not available (See Supplemental Table 3)

PlateletAggregation: No 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: ITGA2B

Variant: NM_000419.3:c.1210+5G>A

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA915940251

gnomAD: N/A

Case29: (GT-34) Male, age or ethnicity not specified

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: Proband GT31-GT34 are related

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

Case1: (GT-01) Male, age or ethnicity not specified

DiseaseAssertion: Glanzmann thrombasthenia type 1

FamilyInfo: Probands 2-9 are related to GT-01 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 Supplemental Table 3)

CaseNotHPOs: N/A

CaseNotHPOsFreeText: N/A

ProteinExpression: Flow cytometry performed and CD41 and CD61 not 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: ITGA2B

Variant: NM_000419.3:c.1210+5G>A

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA915940251

gnomAD: N/A

Case32: (GT-37) Female, age or ethnicity not specified

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: Proband GT31-GT34 are related

ParentalGenotype: N/A

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: ITGA2B

Variant: NM_000419.3:c.1879-2A>G

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA290949031

gnomAD: N/A

Case20: (GT-22) Female, 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: 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.2302-1G>A

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA400034626

gnomAD: N/A

Case49: (GT-60) Female, 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

PMID: 30792900

Gene: ITGA2B and ITGB3

HGNC: 6138 and 6156 respectively as shown above

Case22: (GT-26) Male, age or ethnicity not specified

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: Proband GT-26 is related to GT-25 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: ITGA2B

Variant: NM_000419.3:c.1879-2A>G

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA290949031

gnomAD: N/A

Supplemental Table S1:

Cases19-23: Males and Females from France, North Africa, Italy and Germany, ages are not specified for these patients

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: N/A

ParentalGenotype: N/A

CasePresentingHPOs: N/A

CaseHPOFreeText: N/A

CaseNotHPOs: N/A

CaseNotHPOsFreeText: N/A

ProteinExpression: <5% αIIbβ3 expression

PlateletAggregation: Absent platelet aggregation (all the information that is provided in Supp. Table S1)

CasePreviousTesting: Sanger sequencing of exons, splice sites and untranslated regions of the ITGA2B and ITGB3 genes was performed

Gene: ITGA2B

Variant: NM_000419.3:c.1878G>T (p.Gln626His)

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA399801470

gnomAD: N/A

PreviouslyPublished: PMID: 21113249, 20020534, 22513797, 25728920

Supplemental Table S1:

Case24: N/A (from Turkey)

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: N/A

ParentalGenotype: N/A

CasePresentingHPOs: Individual clinical data not given

CaseHPOFreeText: N/A

CaseNotHPOs: N/A

CaseNotHPOsFreeText: N/A

ProteinExpression: <5% αIIbβ3 expression

PlateletAggregation: Absent platelet aggregation (all the information that is provided in Supp. Table S1)

CasePreviousTesting: Sanger sequencing of exons, splice sites and untranslated regions of the ITGA2B and ITGB3 genes was performed

Gene: ITGA2B

Variant: Thr646Ala* (Need to consult senior biocurator to figure this variant out) will note it as Unknown as I am not sure of it

LegacyVariant: ^

ClinVar: ^

CAiD: ^

gnomAD: ^

PreviouslyPublished: PMID: 25734216

Supplemental Table S1:

Cases35and36: Females, USA, age not specified

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: N/A

ParentalGenotype: N/A

CasePresentingHPOs: N/A

CaseHPOFreeText: Severe bleeding

CaseNotHPOs: N/A

CaseNotHPOsFreeText: N/A

ProteinExpression: <5% αIIbβ3 expression

PlateletAggregation: Absent platelet aggregation (all the information that is provided in Supp. Table S1)

CasePreviousTesting: Sanger sequencing of exons, splice sites and untranslated regions of the ITGA2B and ITGB3 genes was performed

Gene: ITGA2B

Variant: NM_000419.3:c.2264G>A (p.Arg755Gln)

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA8602771

gnomAD: MAF in the Latino population is 0.0001903 https://gnomad.broadinstitute.org/variant/17-42454380-C-T

PreviouslyPublished: PMID: 25728920

Case#: 4 year old, male

Disease: Glazmann's Thrombasthenia

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

Allele1:

CAID: CA399805892

ClinVar: 953024

Variant:NM_000419.5:c.480C>G

Allele2:

CAID:

ClinVar:

Variant: Not a valid allele. ReferencesDatabase::convertToUnsplicedRegion() - intronic position inside exon ?

ExpressionEvidence: Flow Cytometry of platelet integrin: 53.4% B3 expression, 5.2% A2B expression

Case#: 40, female

Disease: Glazmann's Thrombasthenia

CasePresentingHPOs: HP:0000790, HP:0000967, HP:0000978, HP:0004406, HP:0000225, HP:0006298, HP:0001892, HP:0002239, HP:0000132

Hematuria, Petechiae, Bruising susceptibility, Spontaneous, recurrent epistaxis, Gingival bleeding, Prolonged bleeding after dental extraction, Abnormal bleeding, Gastrointestinal hemorrhage, Menorrhagia

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

ClinVar: 1330321****

CAID: CA923726221 *

Variant: NM_000212.3:c.756del **

* Predicated different Amino Acid affected by Allele Registry according to this table it is Isoleucine but allele registry shows methionine to cysteine with frameshift

GnomAD: Not found

ExpressionEvidence:Flow Cytometry of platelet integrin: 1.2% B3 expression, 45.2% A2B expression

Case#: 39 year old, male

Disease: Glazmann's Thrombasthenia

CasePresentingHPOs: HP:0000967, HP:0000978, HP:0000225, HP:0004406, 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: 2891

CAID: CA115831

Variant: NM_000419.5:c.2621T>G

GnomAD: European at rate of (9494/21600) 0.4395 and East Asian at 0.4327

Allele 2:

ClinVar: 225393

CAID: CA290947544

Variant: NM_000419.5:c.2333A>C

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

ExpressionEvidence: Flow Cytometry of platelet integrin: 83.9% B3 expression, 4.4% A2B expression

PMID: 7509233

Gene: ITGB3

HGNC: 6156

PMID: 19172516

Gene: ITGA2B and/or ITGB3

HGNC: 6138 and 6156

InsufficientEvidence: This article mentions individuals with GT; however, there are no variants in ITGA2B and/or ITGB3 mentioned here

Case8: Patient DC

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: N/A

ParentalGenotype: N/A

CasePresentingHPOs:

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: ITGA2B

Variant: NM_000419.3:c.483C>G (p.Cys161Trp)

LegacyVariant: (p.Cys130Trp)

ClinVar: N/A

CAiD: CA399805884

gnomAD: N/A

Case3: Patient HLa

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: N/A

ParentalGenotype: N/A

CasePresentingHPOs:

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: ITGA2B

Variant: NM_000419.3:c.1544+1G>A

LegacyVariant: N/A

ClinVar: 2895

CAiD: CA10575473

gnomAD: N/A

PMID: 10891446

Gene: ITGB3

HGNC: 6156

Case33: GT53, Female, India, age of onset is 13 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)

Case10: GT29, Fe,a;e, India, age of onset is 3 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: ITGA2B

Variant: There is an error in this article, they state the mutation is c.683 but really in CAR we see it is c.682 --> I have changed it: NM_000419.3:c.682C>T (p.Gln228Stop) and NM_000419.3:c.886G>A (p.Gly296Arg)

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA399805421 and CA8603306

gnomAD: MAF in the East Asian population is 0.00005454 https://gnomad.broadinstitute.org/variant/17-42461684-C-T

Case22: GT20, Female, India, age of onset is 25 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.2186_2187insT (p.Ile730His), NM_000212.2:c.2191_2192delinsG (p.Leu731Gly), NM_000212.2:c.2201_2206del (p.743Gly_735Iledel)

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA915940729, CA915940730, CA915940731

gnomAD: N/A

Case5: GT22, Female, India, age of onset is 34 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: ITGA2B

Variant: NM_000419.3:c.416C>T (p.Ala139Val)

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA399806036

gnomAD: N/A

Case25: GT32, Male, India, age of onset is 6 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

Case28: GT39, Female, India, age of onset is 14 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)

Case#: 13 yo, Female

DiseaseAssertion: GT

FamilyInfo:

CasePresentingHPOs: (HP:0002249) Melena; (HP:0002248) Hematemesis

PlateletAggregation: Prothrombin time: 20, Partial thromboplastin time: 28, Platelet function analyzer-100: >300

CaseHPOFreeText: gastric and jejunum angiodysplasia

ProteinExpression: Flow cytometry: CD41 and 61 <50%

CasePreviousTesting: Molecular sequencing, Patients’ information was obtained from the medical record system of the Madinah Hereditary Blood Disorders Center, Maternity and Children Hospital, King Fahd Hospital, Al Madinah, Saudi Arabia.

Gene: ITGB3

HGVS: NM_000212.3:c.2111_2112del

ClinVar:

CAID: CA3062865178

gnomAD:

Case1: Male, 61 years old

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: N/A

ParentalGenotype: N/A

CasePresentingHPOs: N/A

CaseHPOFreeText: N/A

CaseNotHPOs: N/A

CaseNotHPOsFreeText: N/A

ProteinExpression: See Figure 4

PlateletAggregation: See Table 2

CasePreviousTesting: Nucleotide sequences of all exons of ITGA2B and ITGB3 were determined on this patient. In total, the primers designed provided amplicons covering all exons and splice sites in both genes and about 50% of the introns. These sequences were compared to those of ITGA2B and ITGB3 in the GenBank database

Gene: ITGB3

Variant: NM_000212.2:c.392G>C (p.Arg131Pro) and NM_000212.2:c.1409dup (p.Asn470Lysfs*2)

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA8622954 and CA500651166

gnomAD: For Arg131Pro MAF in the African population is 0.00006152 http://gnomad.broadinstitute.org/variant/17-45361839-G-C

Case2: Female, 20 years old, ethnicity not specified

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: N/A

ParentalGenotype: N/A

CasePresentingHPOs: N/A

CaseHPOFreeText: N/A

CaseNotHPOs: N/A

CaseNotHPOsFreeText: N/A

ProteinExpression: See Figure 4

PlateletAggregation: See Table 2

CasePreviousTesting: N/A

Gene: ITGA2B

Variant: NM_000419.3:c.1366_1371del (p.Val456_Asp457del)

LegacyVariant: (p.Val425_Asp426del)

ClinVar: 2898

CAiD: CA8603160

gnomAD: https://gnomad.broadinstitute.org/variant/17-42458268-TGTCTAC-T

PreviouslyPublished: PMID: 8704171

PMID: 15748238

Gene: ITGA2B

HGNC: 6138

PMID: 19647234

Genes: ITGA2B and/or ITGB3

HGNC: 6138 and 6156

InsufficientEvidence: This article mentions two individuals with GT; however, there is no mention of variants in ITGA2B and/or ITGB3

PMID: 2070074

Gene: N/A

HGNC: N/A

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

Note: Although there is no evidence regarding GT probands and variants-- there is some experimental assay evidence, where methods for the experiment may be useful

Case3: (Patient HJ) Male, 52 years old, Japanese

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo:

ParentalGenotype:

CaseHPOFreeText: All patients (3 in this study) had suffered from a bleeding diathesis since early childhood

CaseNotHPOs: NA

ProteinExpression: The surface expression of the alphaIIbbeta complex on the patients' platelets was quantitated by flow cytometry. The level of antigen expression for HJ was 15.4%

Platelet Aggregation: Absent platelet aggregation in response to ADP, collagen, and epinephrine, but normal platelet agglutination in response to ristocetin

CasePreviousTesting: The nucleotide sequences of the aIIb and b3 coding regions were determined by direct sequencing of RT-PCR products from platelet RNA

Gene: ITGB3

Variant: NM_000212.2:c.917A>C (p.His206Pro) and NM_000212.2:c.1757G>T (p.Cys586Phe)

LegacyVariant: (p.His280Pro) and (p.Cys560Phe)

ClinVar: N/A

CAiD: CA291224999 and CA400032481

gnomAD: MAF in the East Asian population for (p.His206Pro) is 0.00005437 https://gnomad.broadinstitute.org/variant/17-45364575-A-C and MAF

PMID: 9504647

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

Case2: (Patient NT) Female, 60 years old, Japanese

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: N/A

ParentalGenotype: N/A

CaseHPOFreeText: All patients (3 in this study) had suffered from a bleeding diathesis since early childhood

CaseNotHPOs: NA

ProteinExpression: The surface expression of the alphaIIbbeta complex on the patients' platelets was quantitated by flow cytometry. The level of antigen expression for NT was 7.5%

Platelet Aggregation: Absent platelet aggregation in response to ADP, collagen, and epinephrine, but normal platelet agglutination in response to ristocetin

CasePreviousTesting: The nucleotide sequences of the aIIb and b3 coding regions were determined by direct sequencing of RT-PCR products from platelet RNA

Gene: ITGB3

Variant: NM_000212.2:c.917A>C (p.His206Pro)

LegacyVariant: (p.His280Pro)

ClinVar: N/A

CAiD: CA291224999

gnomAD: MAF in the East Asian population for (p.His206Pro) is 0.00005437 https://gnomad.broadinstitute.org/variant/17-45364575-A-C and MAF

Case24: (Proband Cab-GT24), Female, 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% GPIIb and 10% GPIIIa

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.740G>A (p.Gly247Asp) and NM_000212.2:c.836A>T (p.Lys279Met)

LegacyVariant: N/A

ClinVar: 13569 and 13568

CAiD: CA123256 and CA123254

gnomAD MAF in the African population is 0.00006152 https://gnomad.broadinstitute.org/variant/17-45364494-A-T

PMID: 20020534

Gene: ITGA2B and ITGB3

HGNC: 6138 and 6156

PMID: 22384307

Gene: ITGA2B and ITGB3

HGNC: 6138 and 6156

InsufficientEvidence: This article mentions a case report of an individual with GT however there are no variants in ITGA2B or ITGB3 mentioned

PMID: 22726100

Gene: ITGA2B and ITGB3

HGNC: 6138 and 6156

InsufficientEvidence: This review mentions variants in ITGA2B and ITGB3; however, variants are not tied to specific probands therefore there is insufficient evidence

PMID: 22583386

Genes: ITGA2B and/or ITGB3

HGNC: 6138 and 6156

NoEvidence: This article does not mention probands or variants with GT however this has a general summary of Glanzmann thrombasthenia

Case#: 4 mo, Female

DiseaseAssertion: GT

CasePresentingHPOs: (HP:0001892) Abnormal bleeding; (HP:0000978) Bruising susceptibility

PlateletAggregation: Severe platelet refractoriness. Pretransplant evaluation revealed normal platelet count. Day +9, the patient had undetectable platelet count. Bleeding-control strategies included the use of thrombopoietin receptor agonist, romiplostim, and low-rate continuous platelet transfusion. Imlifidase was well tolerated with no side effects.

CaseHPOFreeText: Escherichia coli bacteremia.

ProteinExpression: Platelet GP expression testing confirmed the absence of platelet GPIIb/IIIa expression. Day +12 confirmed the presence of anti-GPIIb/IIIa antibodies among others.

Gene: ITGB3

HGVS: NM_000212.3:c.1788del

ClinVar:

CAID: CA2262611500

gnomAD: 0 https://gnomad.broadinstitute.org/variant/chr17-47299404-GC-G?dataset=gnomad_r4

Supplementary Table S1:

Case15: GT18, French, 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: ITGA2B

Variant: NM_000419.3:c.1201G>T (p.Gly401Cys) and NM_000419.3:c.2800G>T (p.Val934Phe)

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA399804280 and CA290946484

gnomAD: N/A

Supplementary Table S1:

Case5: GT 6, French/Algerian, 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.940G>T (p.Asp314Tyr)

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA400025612

gnomAD: N/A

Supplementary Table S1:

Case27: GT31, "USA"- what the supp table stated, gender and age are not specified here at this time

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: ITGA2B

Variant: NM_000419.3:c.1771dup (p.Asp591Glyfs*47) and NM_000419.3:c.3061-1G>A

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA915940334 and CA399787972

gnomAD: N/A

Supplementary Table S1:

Case62: GT73, French, 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.889G>A (p.Gly297Arg)

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA8623074

gnomAD: MAF in the European (non-Finnish) population is 0.00002643 https://gnomad.broadinstitute.org/variant/17-45364547-G-A

Supplementary Table S1:

Case44: GT51, French/African, 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.861del (p.Arg287SerfsTer34) and NM_000212.2:c.1456del (p.Cys486A;afsTer183)

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA915940375 and CA915940376

gnomAD: N/A

Supplementary Table S1:

Case63: GT74, 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: ITGA2B

Variant: NM_000419.3:c.1214T>C (p.Ile405Thr) and NM_000419.3:c.1440-13_1440-1del (p.Arg480SerfsTer106)

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA290950815 and CA913184940

gnomAD: N/A

PMID: 15590407

Gene: ITGB3

HGNC: 6156

Case20: Patient TE, gender, age and ethnicity not specified

DiseaseAssertion: Glanzmann thrombasthenia type I

FamilyInfo: N/A

ParentalGenotype: Article states, "heterozygous parents of TE"

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.856G>A (p.Gly286Arg) and the variant is c.1129Ains --> NM_000212.2:c.1129dup

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA400020688 and CA915940291

gnomAD: MAF in the European (non-Finnish) population is 0.00001760 https://gnomad.broadinstitute.org/variant/17-45364514-G-A

PMID: 21113249

Gene: ITGA2B and ITGB3

HGNC: 6138 and 6156

Case16: Patient LN, gender, age and ethnicity not specified

DiseaseAssertion: Glanzmann thrombasthenia type I

FamilyInfo: N/A

ParentalGenotype: Parents are heterozygous for mutation (LH and LB)

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_000419.3:c.3062T>C

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA399787956

gnomAD: N/A

Case: (Patient C), Male, age, and ethnicity not specified

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: 2 siblings (compound heterozygotes for the p.Cys674Arg and p.Ile374Thr mutation)

ParentalGenotype: Mother: (p.Ile374Thr) and Father: (p.Cys674Arg)

CasePresentingHPOs: N/A

CaseHPOFreeText: N/A

CaseNotHPOs: N/A

CaseNotHPOFreeText: N/A

ProteinExpression: By immunoblot analysis, it was found that the platelets of the patient and his 2 siblings contained both αIIb and β3, but at reduced levels compared with a healthy control (Figure 1B)

CasePreviousTesting: Direct sequence analysis of the of the genes encoding αIIb were performed on DNA isolated from leukocytes obtained from Patient C and family members.

Gene: ITGA2B

Variant: NM_000419.3:c.1214T>C (p.Ile405Thr) and NM_000419.3:c.2113T>C (p.Cys705Arg)

LegacyVariant: (p.Ile374Thr) and (p.Cys674Arg)

ClinVar: N/A

CAiD: CA290950815 and CA8602816

gnomAD: MAF in the European (non-Finnish) population is 0.000008792 https://gnomad.broadinstitute.org/variant/17-42455140-A-G