ClinVar Miner

Submissions for variant NM_000254.3(MTR):c.349A>C (p.Met117Leu)

dbSNP: rs143180799
Minimum review status: Collection method:
Minimum conflict level:
ClinVar version:
Total submissions: 1
Download table as spreadsheet
Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Labcorp Genetics (formerly Invitae), Labcorp RCV001061955 SCV001226722 uncertain significance Methylcobalamin deficiency type cblG 2021-08-24 criteria provided, single submitter clinical testing This sequence change replaces methionine with leucine at codon 117 of the MTR protein (p.Met117Leu). The methionine residue is moderately conserved and there is a small physicochemical difference between methionine and leucine. This variant is present in population databases (rs143180799, ExAC 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 output the following: SIFT: "Tolerated"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0". The leucine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. 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.

The information on this website is not intended for direct diagnostic use or medical decision-making without review by a genetics professional. Individuals should not change their health behavior solely on the basis of information contained on this website. Neither the University of Utah nor the National Institutes of Health independently verfies the submitted information. If you have questions about the information contained on this website, please see a health care professional.