ClinVar Miner

Submissions for variant NM_005592.4(MUSK):c.665A>T (p.Asn222Ile)

dbSNP: rs55826142
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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Invitae RCV001035403 SCV001198729 uncertain significance Fetal akinesia deformation sequence 1; Congenital myasthenic syndrome 9 2019-02-05 criteria provided, single submitter clinical testing This variant has not been reported in the literature in individuals with MUSK-related conditions. This variant is not present in population databases (ExAC no frequency). This sequence change replaces asparagine with isoleucine at codon 222 of the MUSK protein (p.Asn222Ile). The asparagine residue is highly conserved and there is a large physicochemical difference between asparagine and isoleucine. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. 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 C15").

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