ClinVar Miner

Submissions for variant NM_004333.6(BRAF):c.1940A>G (p.Tyr647Cys)

dbSNP: rs1562939198
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Total submissions: 3
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
GeneDx RCV000681219 SCV000808679 uncertain significance not provided 2018-04-30 criteria provided, single submitter clinical testing A variant of uncertain significance has been identified in the BRAF gene. The Y647C variant has not been published as pathogenic or been reported as benign to our knowledge. This variant is not observed in large population cohorts (Lek et al., 2016). The Y647C variant is a non-conservative amino acid substitution, which is likely to impact secondary protein structure as these residues differ in polarity, charge, size and/or other properties. In-silico analyses, including protein predictors and evolutionary conservation, support a deleterious effect. However, based on the currently available information, it is unclear whether this variant is pathogenic or rare benign.
Fulgent Genetics, Fulgent Genetics RCV000764689 SCV000895821 uncertain significance Cardiofaciocutaneous syndrome 1; Lung carcinoma; Noonan syndrome 1; LEOPARD syndrome 3; Noonan syndrome 7 2018-10-31 criteria provided, single submitter clinical testing
Invitae RCV003540621 SCV004305419 uncertain significance RASopathy 2023-07-13 criteria provided, single submitter clinical testing This sequence change replaces tyrosine, which is neutral and polar, with cysteine, which is neutral and slightly polar, at codon 647 of the BRAF protein (p.Tyr647Cys). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with BRAF-related conditions. ClinVar contains an entry for this variant (Variation ID: 561797). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is expected to disrupt BRAF 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.

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