Supplementary Tables 1 and 2 combined information:

Case28: GT28, Female, 6 years old

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: Not available per supplementary table 1

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

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

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

CaseHPOFreeText: Post traumatic hemorrhage

CaseNotHPOs: N/A

CaseNotHPOsFreeText: N/A

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

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

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

Gene: ITGB3

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

LegacyVariant: N/A

ClinVar: N/A

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

gnomAD: N/A