ClinVar Miner

Submissions for variant NM_001159699.2(FHL1):c.496T>C (p.Cys166Arg)

dbSNP: rs1603271659
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Total submissions: 2
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Baylor Genetics RCV000850501 SCV000992703 likely pathogenic Myopathy, reducing body, X-linked, childhood-onset; Myopathy, reducing body, X-linked, early-onset, severe; X-linked myopathy with postural muscle atrophy; Uruguay Faciocardiomusculoskeletal syndrome; X-linked scapuloperoneal muscular dystrophy 2018-10-12 criteria provided, single submitter clinical testing
Labcorp Genetics (formerly Invitae), Labcorp RCV001869289 SCV002169009 pathogenic X-linked myopathy with postural muscle atrophy 2023-11-03 criteria provided, single submitter clinical testing This sequence change replaces cysteine, which is neutral and slightly polar, with arginine, which is basic and polar, at codon 150 of the FHL1 protein (p.Cys150Arg). This variant is not present in population databases (gnomAD no frequency). This missense change has been observed in individuals with myofibrillar myopathy and/or reducing body myopathy (PMID: 20571991, 31273321, 31803991, 32001145). It has also been observed to segregate with disease in related individuals. ClinVar contains an entry for this variant (Variation ID: 689729). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. This variant disrupts the p.Cys150 amino acid residue in FHL1. Other variant(s) that disrupt this residue have been determined to be pathogenic (PMID: 19171836; Invitae). This suggests that this residue is clinically significant, and that variants that disrupt this residue are likely to be disease-causing. For these reasons, this variant has been classified as Pathogenic.

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