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Hypertrophic cardiomyopathy v1.53 TTN Rebecca Whittington commented on gene: TTN: Cardiomyopathy, familial hypertrophic, 9 (613765)
Hypertrophic cardiomyopathy v1.52 TTN Rebecca Whittington commented on gene: TTN: Limited evidence for HCM
Hypertrophic cardiomyopathy v1.52 JPH2 Rebecca Whittington commented on gene: JPH2: Weak evidence for primary role in pathogenicity: 28082330. Insufficient evidence, no supporting segregation, despite functional assays. PMID: 28393127 - a novel variant identified in a proband with significant basal septal hypertrophy. Neither parents were genotyped. his mutation was absent in 159,358 reference alleles. Variants in in MYH7, MYBPC3, MYL2, MYL3, TTNT2, TTNI3, TNNC1, TPM1, ACTC, PRKAG2, GLA, and LAMP2 genes, were excluded in this patient. Mice with this variant exhibit similar basal hypertrophy using a newly developed echo imaging plane, and this was confirmed using cardiac MRI. Histological analysis demonstrated cardiomyocyte hypertrophy and disarray consistent with HCM. 3 additional missense variants reported in 3 cases in PMID: 17509612 (2007), however another missense variant Gly550Ser in this gene has been reclassified as unknown pathogenic significance, due to presence in allele frequency databases. HGMD: 8 DM variants - 3 DCM rest HCM. Functional studies shown an effect in JPH2 but no variants with evidence of segregation. 10.1093/eurheartj/ehw603
Hypertrophic cardiomyopathy v1.51 TTN Rebecca Whittington reviewed gene: TTN: Rating: RED; Mode of pathogenicity: ; Publications: ; Phenotypes: ; Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Hypertrophic cardiomyopathy v1.45 TTN Ellen McDonagh Source South West GLH was added to TTN.
Mode of inheritance for gene TTN was changed from BIALLELIC, autosomal or pseudoautosomal to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted