Supplementary Tables 1 and 2 combined information:

Case17a: GT17a, Female, 14 years old, sister of GT17b proband

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: Available per supplementary table 1

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

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

(Bruising, purpura, ecchymosis, epistaxis)

CaseHPOFreeText: Post traumatic hemorrhage

CaseNotHPOs: N/A

CaseNotHPOsFreeText: N/A

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

PlateletAggregation: Platelet aggregation showed a small 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: ITGA2B

Variant: NM_000419.3:c.799+2T>C and NM_000419.3:c.2671C>T (p.Gln891Ter)

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA399805155 (c.799 +2 T>C) and CA8602626 (p.Gln891Ter)

gnomAD: N/A

Supplementary Tables 1 and 2 combined information:

Case25: GT25, Female, 26 years old

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: Not available per supplementary table 1

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

CasePresentingHPOs: HP:0000421, HP:0000225, HP:0000132, HP:0000789,

(Epistaxis, gingival bleeding, menorrhagia, infertility)

CaseHPOFreeText: Rupture of corpus luteum

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.1495T>C (p.Cys499Arg)

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA400029525

gnomAD: N/A

Supplementary Tables 1 and 2 combined information:

Case37: GT37, Female, 1 year 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

(Bruising, purpura, ecchymosis)

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: ITGA2B

Variant: NM_000419.3:c.1993C>T (p.Gln665Ter)

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA399801004

gnomAD: MAF in East Asian population: 0.00005461 https://gnomad.broadinstitute.org/variant/17-42455831-G-A

Supplementary Tables 1 and 2 combined information:

Case19: GT19, Female, 32 years old

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: Not available per Table 1.

ParentalGenotype: Parents are consanguineous, no other genotype information available

CasePresentingHPOs: HP:0000421, HP:0000225, HP:0000790, HP:0000132

(Epistaxis, gingival bleeding, hematuria, menorrhagia)

CaseHPOFreeText: Post traumatic hemorrhage

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: ITGA2B

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

LegacyVariant: N/A

ClinVar: 381748

CAiD: CA8603182 (p.Gly412Arg)

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

Case10: (GT45) 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.1073G>A (p.Arg358His)

LegacyVariant: N/A

ClinVar: 2896

CAiD: CA115839

gnomAD N/A

Case31: (GT41) 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.887_901del

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA626379036

gnomAD MAF in the South Asian population is 0.00003266 https://gnomad.broadinstitute.org/variant/17-45364541-AATGACGGGCAGTGTC-A

PMID: 19691478

Gene: ITGA2B and ITGB3

HGNC: 6138 and 6156

Case7: (GT26) 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

Case2: GT18, Gender, age, ethnicity not specified

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: 1 brother is heterozygous for the g.951G>A promoter variant and does not have the other Leu343Pro mutation and one brother is normal and does not have the NM_000419.3:c.2915dup mutation

ParentalGenotype: Father: homozygous for the g.951G>A promoter variant and the Leu343Pro Mother: is heterozyous for both those mutations and mother does not have NM_000419.3:c.2915dup while the father is heterozygous for NM_000419.3:c.2915dup

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) and NM_000419.3:c.2915dup

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA913189168 (promoter variant) and CA399804619 (p.Leu343Pro) and CA8602531

gnomAD MAF in the East Asian population is 0.0001088 https://gnomad.broadinstitute.org/variant/17-42452054-C-CG for the NM_000419.3:c.2915dup variant

Case12: (GT39) 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.92G>A (p.Cys31Tyr)

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA400031593

gnomAD N/A

Supplementary Table S1 & S2 Proband and Variant Information:

Case21: GT24, Female, 45, French (Gypsy)

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: N/A

ParentalGenotype: N/A

CasePresentingHPOs: HP:0000421, HP:0000132

(Epistaxis, menorrhagia)

CaseHPOFreeText: Post-traumatic hematoma

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:

Case60: GT62, Female, 58 years old, French

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: Affected sister (that is all the information we are given)

ParentalGenotype: N/A

CasePresentingHPOs: HP:0000978, HP:0000225, HP:0000132, HP:0006298

(Easy bruising, gingival bleeding, menorrhagia, bleeding after dental extraction)

CaseHPOFreeText: Esophageal 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.31T>C (p.Trp11Arg)

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA291240306

gnomAD: N/A

PMID: 25728920

Genes: ITGA2B and ITGB3

HGNC: 6138 and 6156

Note: In the annotations, case #'s don't always match up with the exact proband #, because not all probands had GT variants identified in them

Supplementary Table S1 & S2 Proband and Variant Information:

Case15: GT18, Male, 20, French

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: N/A

ParentalGenotype: N/A

CasePresentingHPOs: HP:0031364, HP:0000978

(Ecchymosis, easy bruising)

CaseHPOFreeText: N/A

CaseNotHPOs: N/A

CaseNotHPOsFreeText: N/A

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

PlateletAggregation: Residual platelet aggregation (See Supplementary Table 1)

CasePreviousTesting: Sanger sequencing of ITGA2B and ITGB3

Gene: ITGA2B

Variant: NM_000419.3:c.1201G>T (pGly401Cys) andNM_000419.3:c.2800G>T (p.Val934Phe)

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA399804280 and CA290946484

gnomAD: N/A

Supplementary Table S1 & S2 Proband and Variant Information:

Case31: GT35a, Female, 18 years old, USA

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: Affected sister who is 35 b 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:

Case53: GT53, Male, 16 years old, Argentenian/Brazilian

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: N/A

ParentalGenotype: N/A

CasePresentingHPOs: HP:0000421

(Epistaxis)

CaseHPOFreeText: Hematomas

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.356G>A (p.Gly201Ser) and NM_000212.2:c.1697G>A (p.Arg119Gln)

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA8622925 and CA400032338

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

Supplementary Table S1 & S2 Proband and Variant Information:

Case46: GT45, Male, 86 years old, French

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: N/A

ParentalGenotype: N/A

CasePresentingHPOs: HP:0000421, HP:0000225, HP:0002239

(Epistaxis, gingival bleeding, 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.551_626del (p.Arg184_Gln208del) and LR deletion

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA915940373

gnomAD: N/A

Supplementary Table S1 & S2 Proband and Variant Information:

Case45: GT44, Female, 10 years old, French

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: N/A

ParentalGenotype: N/A

CasePresentingHPOs: N/A

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.1357C>T (p.Arg453Ter)

LegacyVariant: N/A

ClinVar: 631773

CAiD: CA399803529

gnomAD: N/A

Supplementary Table S1 & S2 Proband and Variant Information:

Case48: GT48, Male, 10 years old, French

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: N/A

ParentalGenotype: N/A

CasePresentingHPOs: HP:0031364, HP:0000421, HP:0001934

(Ecchymosis, epistaxis, persistent bleeding after trauma)

CaseHPOFreeText: Frequent hematomas

CaseNotHPOs: N/A

CaseNotHPOsFreeText: No serious episode of spontaneous bleeding

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

PlateletAggregation: N/A (Not available for this proband see Supp Table S1)

CasePreviousTesting: Sanger sequencing of ITGA2B and ITGB3

Gene: ITGB3

Variant: NM_000212.2:c.1094A>G (p.Asn365Ter) and NM_000212.2:c.1522del (p.Gln508Serfs*161)

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA400026292 and CA772541579

gnomAD: N/A

Supplementary Table S1 & S2 Proband and Variant Information:

Case23: GT26, Male, 45, French

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: N/A

ParentalGenotype: N/A

CasePresentingHPOs: HP:0000421, HP:0000978

(Epistaxis, easy bruising)

CaseHPOFreeText: N/A

CaseNotHPOs: N/A

CaseNotHPOsFreeText: N/A

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

PlateletAggregation: Much reduced platelet aggregation (See Supplementary Table 1)

CasePreviousTesting: Sanger sequencing of ITGA2B and ITGB3

Gene: ITGA2B

Variant: NM_000419.3:c.1073G>A (p.Arg358His)

LegacyVariant: N/A

ClinVar: 2896

CAiD: CA115839

gnomAD: N/A

PMID: 10233432

Gene: ITGB3

HGNC: 6156

Note: Other GT variants are mentioned at the end of the article; however, those have been mentioned in other papers-- and probands with those mentioned variants are not apart of this paper

PMID: 14629479

Gene: ITGB3

HGNC: 6156

Case6: Patient DN

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: 9012651

Gene: ITGA2B and 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

Case12: (GT-14) Female, carrier, age or ethnicity not specified

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: Probands GT11 -GT13 are related to GT-14 see Table 1

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

CasePresentingHPOs: N/A

CaseHPOFreeText: Bleeding severity: 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.727G>C (p.Asp243His)

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA400023600

gnomAD: N/A

Case23: (GT-27) Male, age or ethnicity not specified

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: Proband GT28 is related to this proband GT 27; however, no DNA was available for testing for GT28.

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.1835G>A

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA400032647

gnomAD: N/A

Case47: (GT-58) Female, age or ethnicity not specified

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: N/A

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: ITGB3

Variant: NM_000212.2:c.1543del (p.Ser513fs)

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA500651429

gnomAD: N/A

Case30: (GT-35) 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

Case19: (M11), Male, 63 years old, French Gypsy

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: N/A

ParentalGenotype: N/A

CasePresentingHPOs: N/A

CaseHPOFreeText: Mucocutaneous bleeding

CaseNotHPOs: N/A

ProteinExpression: Failed to express alphaIIbbeta3 on the surface of their platelets

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.1544+1G>A

LegacyVariant: N/A

ClinVar: 2895

CAiD: CA10575473

gnomAD N/A

Case8: (GT-8) Female, 10 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.682C>T (p.Gln228Ter) and NM_000419.3:c.1750C>T (p.Arg584Ter)

LegacyVariant: (p.Gln197Ter) and (p.Arg558Ter) (The paper gives legacy and current nomenclature)

ClinVar: 2892 (p.Arg584Ter)

CAiD: CA399805421 (p.Gln228Ter) CA115834 (p.Arg584Ter)

gnomAD MAF in the East Asian population is 0.0002176 https://gnomad.broadinstitute.org/variant/17-42457372-G-A

Case10: (M2) Female, 4 years old, French Gypsy

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: N/A

ParentalGenotype: N/A

CasePresentingHPOs: N/A

CaseHPOFreeText: Mucocutaneous bleeding

CaseNotHPOs: N/A

ProteinExpression: Failed to express alphaIIbbeta3 on the surface of their platelets

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.1544+1G>A

LegacyVariant: N/A

ClinVar: 2895

CAiD: CA10575473

gnomAD N/A

Case3: (GT3) Male, 82 years old, French

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: N/A

ParentalGenotype: N/A

CasePresentingHPOs: N/A

CaseHPOFreeText: Mucocutaneous bleeding

CaseNotHPOs: N/A

ProteinExpression: 8-10% 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: ITGA2B

Variant: NM_000419.3:c.2348+5G>C

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA290947484

gnomAD N/A

Case2: Mother S

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: N/A

ParentalGenotype: N/A

CasePresentingHPOs: N/A

CaseHPOFreeText: N/A

CaseNotHPOs: N/A

CaseNotHPOsFreeText: N/A

ProteinExpression: Assessment of surface PTL expression of GPIIIa-IIb was performed

PlateletAggregation: N/A

CasePreviousTesting: DNA sequence analysis was performed for PCR products corresponding to exon 4 of GPIIb

Gene: ITGA2B

Variant: NM_000419.3:c.480C>G

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA399805892

gnomAD: MAF in the East Asian population is 0.00005507 https://gnomad.broadinstitute.org/variant/17-42463013-G-C

PMID: 20142940

Gene: ITGA2B and/or ITGB3

HGNC: 6138 and 6156

InsufficientEvidence: This article mentions a case report of a 9 year old GT patient who presented with gum bleeding; however, no specific variants in ITGA2B and/or ITGB3 are presented in this patient; therefore we have insufficient evidnece

NM_002203:c.185+8T>C

Unable to identify variant for following reasons: 1) NM_002203 is for ITGA2 not ITGA2B 2) c.185 is not at an exon boundary in ITGA2B Mane transcript

NM_002203:c.1600G>A

Unable to identify variant for following reasons: 1) NM_002203 is for ITGA2 not ITGA2B 2) c.1600 in all ITGA2B transcripts is a T not a G in allele registry

PMID: 16217260

Genes: ITGA2B and/or ITGB3

HGNC: 6138 and 6156

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

Case#: 1 year old, Female

Disease: Glazmann's Thrombasthenia

CasePresentingHPOs: HP:0000967, HP:0000978, HP:0004406, HP:0002239

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: 1330328

CAID: CA399801004

Variant: NM_000419.5:c.1993C>T

GnomAD:Found in East Asian population at rate of 0.00005461 (1/18310)

ExpressionEvidence: Flow Cytometry of platelet integrin: 2.8% B3 expression, 36.5% A2B expression

Case#: 13 year old, male

Disease: Glazmann's Thrombasthenia

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

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: 996212

CAID: CA399803786

Variant: NM_000419.5:c.1229C>G

GnomAD: European non-Finnish at rate of 0.0000089411 (1/111846)

Allele 2:

ClinVar: 225393

CAID: CA290947544

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

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

ExpressionEvidence: Flow Cytometry of platelet integrin: 92.9% B3 expression, 2.1% A2B expression

PMID: 14662345

Gene: ITGA2B

HGNC: 6138

InsufficientEvidence: This article mentions dogs with GT; however, the article states, "These animals have a 14-base insertion in exon 13 of glycoprotein IIb gene" which is a variant in ITGA2B. This variant may only be specific to dogs; however, just wanted to make note of this gene alteration.

Table 3 Molecular Diagnosis of Patients with Glanzmann Thrombasthenia:

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

DiseaseAssertion: Glanzmann thrombasthenia type II

FamilyInfo: Segregation analysis confirmed in presence of heterozygous mutations in this proband.

ParentalGenotype: Although segregation analysis confirmed, we do not know which variant in particular came from mom or dad.

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 between 5% and 20%

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.448A>G (p.Met124Val) and NM_000212.2:c.774_775del (p.Cys258Ter)

LegacyVariant: N/A

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

Case1: Female, 1 year old, ethnicity not specified (patient from Morocco)

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: Her brother is asymptomatic. Her first cousin, (male) died as a result of some unknown bleeding disorder

ParentalGenotype: Parents fully sequenced and

CasePresentingHPOs: HP:0000967, HP:0000978

(Petechia, bruising)

CaseHPOFreeText: Mucocutaneous hemorrhages

CaseNotHPOs: N/A

CaseNotHPOsFreeText: N/A

ProteinExpression: Flow cytometry showed less than 10% of ITGA2B and ITGB3 complexes

PlateletAggregation: Platelet aggregation in response to ADP, thrombin, collagen and epinephrine was less than 10% of normal platelets and risotcetin induced platelet agglutination was normal

CasePreviousTesting: Complete analysis of ITGA2B and ITGB3 coding sequences were performed (PCR)

Gene: ITGA2B

Variant: NM_000419.3:c.188G>A

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA8603528

gnomAD: MAF in the European (non-Finnish) population is 0.000008803 http://gnomad.broadinstitute.org/variant/17-42466654-C-T

PMID: 17250517

Gene: ITGA2B and/or ITGB3

HGNC: 6138 and 6156

InsufficientEvidence: This article mentions two GT case reports of girls with menorrhagia; however, there was no mention of variants in ITGA2B and/or ITGB3; therefore there is insufficient evidence

PMID: 11588040

Gene: ITGB3

HGNC: 6156

Case36: GT60-2, 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.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

Case26: GT33, Female, India, age of onset is 18 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)

Case24: GT25, 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.921C>A (p.Tyr307Ter)

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA400025209

gnomAD: N/A

Case#: Basani_1996_LeM, female, Caucasian, >1 y.o.

DiseaseAssertion: GT

FamilyInfo: nonconsanguineous parents

ParentalGenotype: one obligatory carrier

CasePresentingHPOs: HP:0000967 Petechiae, HP:0000979 Purpura,

PlateletAggregation: absence of platelet aggregation in response to adenosine diphosphate (ADP), epinephrine, and collagen, but a normal response to ristocetin.

CaseHPOFreeText: Platelet Count (1 day old): 181,000/mm^3

CaseNotHPOs:

CaseNotHPOFreeText:

ProteinExpression: Flow cytometry: platelets expressed <5% of the normal amount of αIIbβ3 when stained with the β3-specific MoAb SSA6,24 the heterodimer-dependent MoAb A2A923,24 or the activation-dependent MoAb PAC1.25 On the other hand, LeM and control platelets bound comparable amounts of the anti-GPIb MoAb AP1, confirming that the defect in the patient's platelets was confined to αIIbβ3

CasePreviousTesting:

Method: PCR using VENT polymerase confirmed with SSCPA

PreviouslyPublished:

Gene: ITGA2B

Variant: exon 13 sequence containing the 6 bp deletion 5’-GTGACA-3’ (deletion of Val425-Asp426) (heterozygous)

HGVS: NM_000419.5:c.1366_1371del (p.Val456_Asp457del)

ClinVar: 2898

CAID: CA8603160

gnomAD: 0.000008791 European (non-Finnish)

PMID: 20886184

Gene: ITGA2B

HGNC: 6138

InsufficientEvidence: This article discusses the French Gypsy variant NM_000419.3:c.1544+1G>A (p.Val513Leufs*71) in ITGA2B and mentions a cohort of patients harboring this variant; however, there are no specific case level reports mentioned in this article therefore we have insufficient evidence

Case: 37 year old male French Gypsy

CasePresentingHPOs: HP:0001975

(Decreased platelet glycoprotein IIb-IIIa)

GenotypingMethod:Genotyping analysis of the HPA-1 system by high resolution melting analysis (methods not provided, cited article I don't have access too)

ClinVar: 2895

CAID: CA10575473

Variant: NM_000419.5:c.1544+1G>A

GnomAD: Not found

ExpressionEvidence: Failed to express αIIbβ3 integrin on their platelet surface (methods not provided cited article no access too)

Case13: GT-13, Swiss, gender or age not specified

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: N/A

ParentalGenotype: N/A

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: ITGA2B

Variant: NM_000419.3:c.555T>G and NM_000419.3:c.1882C>T

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA399805736 and CA399801310

gnomAD: MAF in the Latino population is 0.00003983 http://gnomad.broadinstitute.org/variant/17-42456075-G-A

Case3: GT-3, Turkish, gender or age not specified

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: N/A

ParentalGenotype: N/A

CasePresentingHPOs: N/A

CaseHPOFreeText: Bleeding symptoms are severe and bleeding time is pathogenic (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_000419.3:c.310+3_310+6del

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA915940325

gnomAD: N/A

Case1: Patient 1, Male, 6 years old

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: Affected brother is Patient 2

ParentalGenotype: Mother and father revealed heterozygosity for c.1878G>C mutation. (Parents are consanguineous)

CasePresentingHPOs: HP:0000967, HP:0000421, HP:0000225

(Petechiae, epistaxis, gingival bleeding)

CaseHPOFreeText: Hematomas,

CaseNotHPOs: N/A

CaseNotHPOsFreeText: N/A

ProteinExpression: Flow cytometry analysis showed that there was no surface expression of GPIIb/IIIa detectable on patient 1's platelets, indicating a lack of platelet GPIIb/IIIa expression

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. In contrast, ristocetin-induced platelet aggregation was within normal range for patient 1

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.1878G>C (p.Gln626His)

LegacyVariant: N/A

ClinVar: 2903

CAiD: CA115852

gnomAD: N/A

PMID: 30388316

Gene: ITGA2B and/or ITGB3 (Proband presented with GT therefore these two genes may be involved)

HGNC: 6138 and 6156

InsufficientEvidence: Proband with Glanzmann thrombasthenia presented in this article; however, no variant information provided

Supplemental Table S1:

Case4: Male, India, age not specified

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: N/A

ParentalGenotype: N/A

CasePresentingHPOs: N/A

CaseHPOFreeText: Bleeding from multiple sites

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.1651C>T (p.Arg551Trp)

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA399802348

gnomAD: MAF in the East Asian population is 0.00005045 https://gnomad.broadinstitute.org/variant/17-42457471-G-A

PreviouslyPublished: PMID: 16879215

Case2: Female, Spanish, age not specified

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

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA400025814

gnomAD: N/A

Case5: Male, age or ethnicity not specified

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: N/A

ParentalGenotype: N/A

CasePresentingHPOs: N/A

CaseHPOFreeText: Severe 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: NM_000212.2:c.892C>G (p.Gln298Ter)

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA400025097

gnomAD: N/A

This is a cohort of 12 Iraqi-Jewish Glanzmann thrombasthenia patients

Gene: ITGA2B

Variant: NM_000419.3:c.409-2_419del

ClinVar: 2889

CAID: CA10575471

gnomAD: N/A

PMID: 14508803

Gene: ITGA2B and ITGB3

HGNC: 6138 and 6156

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

In this study the goal was to determine what the common subtype of GT was: The expression of GPIIb/IIIa on the platelet surface was assessed in 10 patients with Glanzmann thrombasthenia and their families by flow cytometry to determine the common subtype in North Indians

Case#: GT3 male, 17 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: Flow Cytometry of platelet αIIbβ3: 0%CD41, .43% CD61

FamilyInfo: Positive consanguinity

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

ClinVar: 1691476

CAID: CA400030171

Variant: NM_000212.3:c.1641C>G

GnomAD: Not Found

Case30: Patient CM

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.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: Reference 48 and 49

Case32: Patient SH

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: N/A

ParentalGenotype: N/A

CasePresentingHPOs: N/A

CaseHPOFreeText: N/A

CaseNotHPOs: N/A

CaseNotHPOsFreeText: N/A

ProteinExpression: 20% GPIIIa and GPIIb surface expression

PlateletAggregation: N/A

CasePreviousTesting: N/A

Gene: ITGB3

Variant: NM_000212.2:c.725G>A (p.Arg242Gln)

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA291224896

gnomAD: N/A

PreviouslyPublished: Reference number 5 in this article

Supplementary Table S1:

Case28: GT33a, USA/Laos, gender and age not specified or reported

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.262C>T (p.Arg88Ter) and NM_000212.2:c.2113del (p.Ley705Cysfs*4)

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA400020703 and CA8623443

gnomAD: MAF in the Other population is 0.0001385 for (p.Arg88Ter) https://gnomad.broadinstitute.org/variant/17-45360816-C-T and MAF in the East Asian population is 0.0001087 for (p.Ley705Cysfs*4) https://gnomad.broadinstitute.org/variant/17-45380183-TC-T

Supplementary Table S1:

Case6: GT7, 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.187C>T (p.Arg63Cys) and NM_000212.2:c.505C>T (p.Arg169Ter)

LegacyVariant: N/A

ClinVar: 631774

CAiD: CA8622892 and CA291224658

gnomAD: MAF in the East Asian population is 0.00005012 https://gnomad.broadinstitute.org/variant/17-45360741-C-T

Supplementary Table S1:

Case55: GT65, 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.574+1G>A and NM_000419.3:c.1946+3G>T

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA399805691 and CA626121071

gnomAD: MAF in the African population is 0.000 https://gnomad.broadinstitute.org/variant/17-42456008-C-A

Supplementary Table S1:

Case60: GT70, French/Arab, gender and ethnicity 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: M_000212.2:c.613_614+2del

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA915940309

gnomAD: N/A

Supplementary Table S1:

Case13: GT14, French, gender 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: ITGA2B

Variant: NM_000419.3:c.423G>T (p.Trp141Cys) and NM_000419.3:c.2902del (p.Tyr968Metfs*163)

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA399806022 and CA915940332

gnomAD: N/A

Supplementary Table S1:

Case9: French/Italian, 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.1440-13_1440-1del (p.Arg480Serfs*106) and NM_000419.3:c.3077G>A (p.Arg1026Gln)

LegacyVariant: N/A

ClinVar: 50232

CAiD: CA913184940 and CA10575572

gnomAD: MAF in the European (non-Finnish) population is 0.000008801 https://gnomad.broadinstitute.org/variant/17-42449775-C-T for (p.Arg1026Gln)

Case1: Female, 21 years old, Japanese (Named Osaka-12 in this study)

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: N/A

ParentalGenotype: The substitution was inherited from her father. The molecular genetic defect inherited from her mother remains determined.

CasePresentingHPOs: N/A

CaseHPOFreeText: Moderate mucocutaneous bleeding in childhood

CaseNotHPOs: N/A

CaseNotHPOsFreeText: N/A

ProteinExpression: Flow cytometry showed revealed a significant reduction in the expression of αIIbβ3 on Osaka-12 platelets

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

CasePreviousTesting: To identify the molecular genetic defect for the proband of interest, all coding regions of ITGA2B and ITGB3 cDNA amplified by RT-PCR were analyzed

Gene: ITGA2B

Variant: NM_000419.3:c.520T>C (p.Tyr174His)

LegacyVariant: (p.Tyr143His)

ClinVar: N/A

CAiD: CA399805805

gnomAD: N/A

Case1: Male, age not specified, ethnicity not specified

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: See Fig 3

ParentalGenotype: Both mutations were found to be heterozygous in all family members that includes parents

CasePresentingHPOs:

(Gum bleeding, ecchymosis, epistaxis)

CaseHPOFreeText: N/A

CaseNotHPOs: N/A

CaseNotHPOsFreeText: N/A

ProteinExpression: Flow cytometry showed that the surface expression of GPIIb/IIIa in patients was 0% and both parents also showed reduced expression as well.

PlateletAggregation: Platelet aggregation in response to all the agonists except risocetin was completely absent in the patient

CasePreviousTesting: Mutation screening by conformational sensitive gel electrophoresis was performed in all the 30 exons of ITGA2B and 15 exons of ITGB3 gene in this patient

Gene: ITGA2B

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

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA399804619 and need to ask about second variant--made note in google doc to ask

gnomAD: N/A

PMID: 23300803

Genes: ITGA2B and ITGB3

HGNC: 6138 an d 6156

Case1: Female, 35 day old, ethnicity not specified

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: N/A

ParentalGenotype: The proband’s mother and father carry heterozygous c.512delC and c.1686delG mutations, respectively. Other parameters for parents are shown in Table 1.

CasePresentingHPOs: HP:0031364, HP:0000967

(Ecchymosis, petechiae)

CaseHPOFreeText: Large parietal and cervical cephalohaematoma, severe anemia

CaseNotHPOs: N/A

CaseNotHPOsFreeText: N/A

ProteinExpression: Flow cytometry of platelet surface antigens revealed the absence of the αIIbβ3 complex.

PlateletAggregation: Prolonged closure time at PFA-100, absent ADP, adrenaline, collagen induced platelet aggregation, and ristocetin induced platelet aggregation at the lower limit of normal

CasePreviousTesting: Sequencing of ITGA2B and ITGB3 genes showed that proband is compound het.

Gene: ITGA2B

Variant: Can not conclusively determine if c.481delC and c.1654delG are the variants intended by the authors based on the available information.

LegacyVariant: N/A

ClinVar: N/A

CAiD: N/A

gnomAD: N/A

PMID: 9694297

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: 28299211

Gene: ITGA2B and ITGB3

HGNC: 6138 and 6156

InsufficientEvidence: This article mentions cases of patients with Glanzmann thrombasthenia and their phenotypes; however, no mention of variants in ITGB3 or ITGA2B

Case14: Patient ID N, Male, 7 years old, ethnicity not specified

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: N/A

ParentalGenotype: N/A

CasePresentingHPOs: HP:0000967, HP:0000979, HP:0000978, HP:0004406, HP:0000225

(Petechiae, purpura, easy bruising, recurrent epistaxis, gingival bleeding)

CaseHPOFreeText: Hemorrhage after dental, hemorrhage after trauma

CaseNotHPOs: HP:0002239, HP:0002239, HP:0000790, HP:0005261, HP:0002248

(GI bleeding, intracranial hemorrhage, hematuria, hemarthrosis, hematemesis)

CaseNotHPOsFreeText: Ear bleeding

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: NM_000212.2:c.774T>A (p.Cys258Ter)

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA400023704

gnomAD: N/A

Case5: Patient ID E, Female, 1 year old, ethnicity not specified

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: N/A

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 a;; coding regions of the ITGA2B and ITGB3 genes. PCR products were purified and Sanger sequenced. Segregation using parental samples was undertaken when available.

Gene: ITGA2B

Variant: c.1460insAGGT (p.Ser477Gfs*111)

LegacyVariant: N/A

ClinVar: N/A

CAiD: Unregistered Variant

gnomAD: N/A

Case4: Gender or age not specified, Thai ethnicity

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: Parental information available in Table 2

ParentalGenotype: Father: p.Gln508Hisfs*3/WT and Mother: No mutations in the coding region

Note: No parental consanguinity

CasePresentingHPOs: N/A

CaseHPOFreeText: The article does not mention specific bleeding phenotypes for each of the 4 probands in the article, rather, there is a general statement that says: "The common presentations included recurrent epistaxis, bleeding in oral cavity, and easy-bruising spontaneously or after trauma"

CaseNotHPOs: N/A

CaseNotHPOsFreeText: N/A

ProteinEpression: General statement from the article that states that flow cytometry to assess the surface GPIIb/IIIa complex showed reduced expression for all probands.

PlateletAggregation: The platelet aggregation test was typically defective with all physiological agonists except ristocetin, for all patients.

CasePreviousTesting: Whole exome sequencing was performed on the 30 exons of ITGA2B and 15 exons in ITGB3. PCR and direct sequencing were then performed in the DNA samples of the patients and their available parents to verify the presence of the identified mutations.

Gene: ITGA2B

Variant: NM_000419.3:c.1524_1533del (p.Gln508Hisfs*3)

LegacyVariant: N/A

ClinVar: N/A

CAiD: CA915940265

gnomAD: N/A

PMID: 8126100

Gene: ITGA2B and ITGB3

HGNC: 6138 and 6156

NoEvidence: This article does not mention GT probands or variants in ITGA2B and ITGB3. In this study, researchers have examined the talin phosphorylation and proteolytic cleavage as possible mechanisms by which talin's subcellular distribution could be regulated in platelets.

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

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

Case2: GTP2, gender, age, or 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: N/A

PlateletAggregation: N/A

CasePreviousTesting: N/A

Gene: ITGA2B

Variant: NM_000419.3:c.818G>A (p.Gly273Asp)

LegacyVariant: N/A

ClinVar: 2894

CAiD: CA115837

gnomAD: N/A