Case1: Female, 3 year old, ethnicity not specified

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: N/A

ParentalGenotype: An analysis of family members indicated that the Gln517Stop and Arg553Stop mutations were located on different alleles and inherited from the patient’s mother and father, respectively

CasePresentingHPOs: HP:0004406, HP:0002248, HP:0000978, HP:0000225

(Recurrent epistaxis, hematemesis, easy bruising, gingival bleeding)

CaseHPOFreeText: Petechial hemorrhages

CaseNotHPOs: HP:0001945, HP:0002014, HP:0005261

Fever, diarreah, hemarthrosis

CaseNotHPOsFreeText: N/A

ProteinExpression: A flow cytometry evaluation revealed marked reduction in glycoprotein IIb/IIIa (See Table 1 for Patient's Lab results)

PlateletAggregation: Patients platelets did not aggregate in response to ADP, epinephrine, arachidonic acid, or collagen but platelets had normal ristocetin induced aggregation

CasePreviousTesting: Molecular genetic analysis of ITGA2B was performed which revealed mutations

Gene: ITGA2B

Variant: NM_000419.3:c.1642C>T (p.Gln548Ter) and NM_000419.3:c.1750C>T (Arg584Ter)

LegacyVariant: Gln517Ter and Arg553Ter

ClinVar: 2892

CAiD: CA399802364 and CA115834

gnomAD: MAF in the East Asian population is 0.0002176

Case2: Female, 41 years old, ethnicity not specified

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: N/A

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

CasePresentingHPOs: HP:0000225 (Gingival bleeding)

CaseHPOFreeText: Site of bleeding: Skin

CaseNotHPOs: N/A

CaseNotHPOFreeText: N/A

ProteinExpression: See Table 1 (information provided)

PlateletAggregation: See Table 1 (information provided)

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

Gene: ITGA2B

Variant: NM_000419.3:c.1750C>T (p.Arg584Ter)

LegacyVariant: N/A

ClinVar: 2892

CAiD: CA115834

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

Supplementary Tables 1 and 2 combined information:

Case40: GT40, Male, 5 years old

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: Not available per supplementary table 1

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

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

(Bruising, purpura, ecchymosis, epistaxis)

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.1750C>T (p.Arg584Ter) and NM_000419.3:c.962G>T (p.Gly321Val)

LegacyVariant: N/A

ClinVar: 2892 (p.Arg584Ter)

CAiD: CA115834 (p.Arg584Ter) and CA399804765 (p.Gly321Val)

gnomAD: MAF for p.Arg584Ter in East Asian population 0.0002176 https://gnomad.broadinstitute.org/variant/17-42457372-G-A

Supplementary Tables 1 and 2 combined information:

Case3: GT3, Female, 12 years old

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: Not available per supplementary table 1

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

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

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

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.1750C>T (p.Arg584Ter)

LegacyVariant: N/A

ClinVar: 2892

CAiD: CA115834

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

Case17: Patient MO (patient found in the GT database as well) gender and age are not specified here

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: N/A

ParentalGenotype: N/A

CasePresentingHPOs: HP:0000978, HP:0000132 (Bruising, menorrhagia)

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.1750C>T (p.Arg584Ter)

LegacyVariant: N/A

ClinVar: 2892

CAiD: CA115834

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

PreviouslyPublished: Reference numbers 29 and 30 in this article