ClinVar Miner

Submissions for variant NM_152743.4(BRAT1):c.1367G>A (p.Cys456Tyr)

gnomAD frequency: 0.00001  dbSNP: rs377494515
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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 RCV001889753 SCV002142284 uncertain significance Neonatal-onset encephalopathy with rigidity and seizures 2021-10-20 criteria provided, single submitter clinical testing This sequence change replaces cysteine with tyrosine at codon 456 of the BRAT1 protein (p.Cys456Tyr). The cysteine residue is weakly conserved and there is a large physicochemical difference between cysteine and tyrosine. This variant is present in population databases (rs377494515, ExAC 0.1%). This variant has not been reported in the literature in individuals with BRAT1-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 tyrosine 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. 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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