ClinVar Miner

Submissions for variant NM_001876.4(CPT1A):c.1745T>G (p.Met582Arg)

dbSNP: rs369312504
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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 RCV001883984 SCV002151203 uncertain significance Carnitine palmitoyl transferase 1A deficiency 2021-09-24 criteria provided, single submitter clinical testing This sequence change replaces methionine with arginine at codon 582 of the CPT1A protein (p.Met582Arg). The methionine residue is moderately conserved and there is a moderate physicochemical difference between methionine and arginine. This variant is present in population databases (rs369312504, ExAC 0.04%). This variant has not been reported in the literature in individuals with CPT1A-related disease. 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 arginine amino acid residue is found in multiple mammalian species, suggesting that this missense change does not adversely affect protein function. These predictions have not been confirmed by published functional studies and their clinical significance is uncertain. Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may create or strengthen a splice site, but this prediction has not been confirmed by published transcriptional studies. 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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