ClinVar Miner

Submissions for variant NM_005343.4(HRAS):c.419C>T (p.Pro140Leu)

dbSNP: rs745637518
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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 RCV001232757 SCV001405325 uncertain significance Costello syndrome 2023-06-06 criteria provided, single submitter clinical testing 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. 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 not expected to disrupt HRAS protein function. ClinVar contains an entry for this variant (Variation ID: 959406). This variant has not been reported in the literature in individuals affected with HRAS-related conditions. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces proline, which is neutral and non-polar, with leucine, which is neutral and non-polar, at codon 140 of the HRAS protein (p.Pro140Leu).
Ambry Genetics RCV004033178 SCV005023042 uncertain significance Cardiovascular phenotype 2023-12-16 criteria provided, single submitter clinical testing The p.P140L variant (also known as c.419C>T), located in coding exon 3 of the HRAS gene, results from a C to T substitution at nucleotide position 419. The proline at codon 140 is replaced by leucine, an amino acid with similar properties. This amino acid position is conserved. In addition, the in silico prediction for this alteration is inconclusive. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear.

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