CaseVIII: Brazil, Caucasian

DiseaseAssertion: Hypertrophic cardiomyopathy

FamilyInfo: Family history of HCM, 1 other relative without phenotypes

CasePresentingHPOs: HP:0001712, HP:0001639, HP:0011103 (Left ventricular hypertrophy, Hypertrophic cardiomyopathy, Abnormality of the left ventricular outflow tract)

HPOsFreeText: N/A

CaseNotHPOs: N/A

NotHPOsFreeText: N/A

CaseAddInfo: Cosegregation confirmed for MYH7

CasePreviousTesting: Only MYH7, MYBPC3, and TNNT2 were tested.

CaseGenotypingMethod: DNA was extracted from peripheral blood and the above genes were subject to PCR amplification and directly sequenced. The resulting sequences were compared with the reference and filtered for pathogenicity.

Variant: NM_000257.3:c.4402G>A (p.Glu1468Lys)

ClinVar: 235033 https://www.ncbi.nlm.nih.gov/clinvar/variation/235033/

gnomAD: Not in gnomAD

Multiple Gene Variants

MYBPC3 Variant

Variant: NM_000256.3:c.2686G>A (p.Val896Met)

ClinVar: 42652 https://www.ncbi.nlm.nih.gov/clinvar/variation/42652/

gnomAD: European (Finnish) 0.02794, Overall 0.006194 https://gnomad.broadinstitute.org/variant/11-47357479-C-T

CaseIV: Brazil, Caucasian

DiseaseAssertion: Hypertrophic cardiomyopathy

FamilyInfo: Family history of HCM

CasePresentingHPOs: HP:0001712, HP:0001639 (Left ventricular hypertrophy, Hypertrophic cardiomyopathy)

HPOsFreeText: N/A

CaseNotHPOs: N/A

NotHPOsFreeText: N/A

CaseAddInfo: Cosegregation confirmed, one other proband (X) has the same genotype, Late sudden death

CasePreviousTesting: Only MYH7, MYBPC3, and TNNT2 were tested.

CaseGenotypingMethod: DNA was extracted from peripheral blood and the above genes were subject to PCR amplification and directly sequenced. The resulting sequences were compared with the reference and filtered for pathogenicity.

Variant: NM_000257.3:c.4402G>A (p.Glu1468Lys)

ClinVar: 235033 https://www.ncbi.nlm.nih.gov/clinvar/variation/235033/

gnomAD: Not in gnomAD