Case1: Female, 5 years old, South East Asian

DiseaseAssertion: Glanzmann thrombasthenia

FamilyInfo: Information given on paternal grandmother

ParentalGenotype: Article mentions that NM_000419.3:c.1946+1G>A was of maternal inheritance and NM_000419.3:c.2944G>A (Val951Met) and NM_000419.3:c.2965G>A (p.Ala958Thr) is of paternal inheritance giving triple heterozygosity

CasePresentingHPOs: HP:0000978, HP:0000421

(Severe bruising, epistaxis)

CaseHPOFreeText: N/A

CaseNotHPOs: N/A

CaseNotHPOFreeText: N/A

ProteinExpression: Flow cytometry showed an ∼4% residual surface expression of αIIbβ

PlateletAggregation: No aggregation in response to ADP, epinephrine or arachidonic acid but a small residual response to collagen

CasePreviousTesting: Extraction of genomic DNA was done and PCR amplification of DNA fragments corresponding to each of the 30 exons in ITGA2B and 15 exons of ITGB3 and SSCP analysis were all performed

Gene: ITGA2B

Variant: NM_000419.3:c.2944G>A (p.Val982Met) and NM_000419.3:c.2965G>A (p.Ala989Thr) and NM_000419.3:c.1946+1G>A

LegacyVariant: (p.Val951Met) and (p.Ala958Thr)

ClinVar: 381747 and 417951 and 569057

CAiD: CA16608466 and CA8602498 and CA8602901

gnomAD: MAF in the Europmean (non-Finnish) population is 0.00006486 https://gnomad.broadinstitute.org/variant/17-42451838-C-T and MAF in the Other population is 0.001939 https://gnomad.broadinstitute.org/variant/17-42451817-C-T and MAF in the East Asian population is 0.00007555 https://gnomad.broadinstitute.org/variant/17-42456010-C-T