ClinVar Miner

Submissions for variant NM_004985.5(KRAS):c.467T>C (p.Phe156Ser)

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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 RCV003539689 SCV004271444 likely pathogenic RASopathy 2023-07-25 criteria provided, single submitter clinical testing This sequence change replaces phenylalanine, which is neutral and non-polar, with serine, which is neutral and polar, at codon 156 of the KRAS protein (p.Phe156Ser). This variant is not present in population databases (gnomAD no frequency). This missense change has been observed in individual(s) with clinical features of KRAS-related conditions (Invitae). 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 KRAS protein function. This variant disrupts the p.Phe156 amino acid residue in KRAS. Other variant(s) that disrupt this residue have been determined to be pathogenic (PMID: 7877967, 17056636, 17601930, 17875937, 20949621; Invitae). This suggests that this residue is clinically significant, and that variants that disrupt this residue are likely to be disease-causing. In summary, the currently available evidence indicates that the variant is pathogenic, but additional data are needed to prove that conclusively. Therefore, this variant has been classified as Likely Pathogenic.

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