ClinVar Miner

Submissions for variant NM_001283009.2(RTEL1):c.1474A>T (p.Met492Leu)

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Total submissions: 2
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Labcorp Genetics (formerly Invitae), Labcorp RCV002610683 SCV003498735 uncertain significance Dyskeratosis congenita, autosomal recessive 5; Pulmonary fibrosis and/or bone marrow failure, Telomere-related, 3 2021-09-01 criteria provided, single submitter clinical testing This sequence change replaces methionine with leucine at codon 492 of the RTEL1 protein (p.Met492Leu). The methionine residue is highly conserved and there is a small physicochemical difference between methionine and leucine. This variant is not present in population databases (ExAC no frequency). This variant has not been reported in the literature in individuals affected with RTEL1-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. This variant disrupts the p.Met492 amino acid residue in RTEL1. Other variant(s) that disrupt this residue have been determined to be pathogenic (PMID: 19461895, 23453664, 23959892). This suggests that this residue is clinically significant, and that variants that disrupt this residue are likely to be disease-causing. 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.
Breakthrough Genomics, Breakthrough Genomics RCV004695312 SCV005195080 uncertain significance not provided criteria provided, single submitter not provided

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