ClinVar Miner

Submissions for variant NM_000254.3(MTR):c.3085C>T (p.Arg1029Trp)

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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Labcorp Genetics (formerly Invitae), Labcorp RCV002938869 SCV003269267 uncertain significance Methylcobalamin deficiency type cblG 2022-02-09 criteria provided, single submitter clinical testing This sequence change replaces arginine, which is basic and polar, with tryptophan, which is neutral and slightly polar, at codon 1029 of the MTR protein (p.Arg1029Trp). This variant is present in population databases (rs139771804, gnomAD 0.01%). This variant has not been reported in the literature in individuals affected with MTR-related conditions. 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: "Possibly Damaging"; Align-GVGD: "Class C0"). 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.

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