Case#: HCM957, male, 30 years,

DiseaseAssertion: HCM

FamilyInfo: Yes, no other HCM in family

CasePresentingHPOs: syncope (HP:0001279)

CaseHPOFreeText: inverted T-waves, ST-segment depression, left anterior branch block, 28mm MLVWT, 58% LVE F, 1.25 E/A ratio, LVOT-PG 7mm

CaseNotHPOs: N/A

CaseNotHPOFreeText: N/A

CasePreviousTesting: N/A

CaseGenotypingMethod: sequencing, physical examination, ECG, 3D modeling, statistical analysis

MultipleGeneVariants:

(1) Variant: NM_000257.4(MYH7):c.2360G>A (p.Arg787His)

ClinVar: 42900 https://www.ncbi.nlm.nih.gov/clinvar/variation/42900/

CAID: N/A

gnomAD: 0.001339 South Asian https://gnomad.broadinstitute.org/variant/14-23894554-C-T

(2) Variant: NM_000257.4(MYH7):c.5561C>T (p.Thr1854Met)

ClinVar: 161320 https://www.ncbi.nlm.nih.gov/clinvar/variation/161320/

CAID: N/A

gnomAD: 0.00005423 European (Non-Finnish) https://gnomad.broadinstitute.org/variant/14-23883310-G-A