ClinVar Miner

Submissions for variant NM_000252.3(MTM1):c.728G>A (p.Ser243Asn)

dbSNP: rs2039919583
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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Invitae RCV001042735 SCV001206436 likely pathogenic Severe X-linked myotubular myopathy 2020-09-17 criteria provided, single submitter clinical testing This sequence change replaces serine with asparagine at codon 243 of the MTM1 protein (p.Ser243Asn). The serine residue is highly conserved and there is a small physicochemical difference between serine and asparagine. This variant is not present in population databases (ExAC no frequency). This variant has been observed in individual(s) with clinical features of congenital myopathy (Invitae). In at least one individual the variant was observed to be de novo. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C0"). In summary, the currently available evidence indicates that the variant is pathogenic, but additional data are needed to prove that conclusively. Therefore, this variant has been classified as Likely Pathogenic.

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