Hypertrophic cardiomyopathy
Gene: RPS6KB1
Comment on list classification: This gene should be promoted to Green at the next GMS panel update (5 unrelated cases plus functional data)Created: 9 Nov 2022, 5:19 p.m. | Last Modified: 9 Nov 2022, 5:19 p.m.
Panel Version: 2.44
Jain et al. 2022 (PMID: 34916228) reported on two unrelated HCM families with the same heterozygous missense RPS6KB1 variant (p.G47W), and subsequently three further unrelated probands with HCM harbouring distinct heterozygous variants (p.Q49K, p.Y62H, respectively). Variants segregated with disease, were predicted pathogenic by silico analyses and were ultrarare or absent in population databases. Functional studies in the HL-1 (mouse cardiomyocytes) cells showed that the patient-specific RPS6KB1 mutant significantly increased cell size and activated rpS6 and ERK1/2 signalling cascades. The relationship between RPS6KB1 and cardiac hypertrophy has also been explored in feline and mice models (PMID: 15226426; 17976640)
Sources: LiteratureCreated: 9 Nov 2022, 5:17 p.m.
Mode of inheritance
MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Phenotypes
Hypertrophic cardiomyopathy
Publications
Gene: rps6kb1 has been classified as Amber List (Moderate Evidence).
gene: RPS6KB1 was added gene: RPS6KB1 was added to Hypertrophic cardiomyopathy - teen and adult. Sources: Literature Q4_22_promote_green tags were added to gene: RPS6KB1. Mode of inheritance for gene: RPS6KB1 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown Publications for gene: RPS6KB1 were set to 34916228 Phenotypes for gene: RPS6KB1 were set to Hypertrophic cardiomyopathy Review for gene: RPS6KB1 was set to GREEN