ClinVar Miner

Submissions for variant NM_007194.4(CHEK2):c.371G>T (p.Cys124Phe)

dbSNP: rs754768271
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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
GeneDx RCV000215985 SCV000279412 uncertain significance not provided 2015-08-12 criteria provided, single submitter clinical testing This variant is denoted CHEK2 c.371G>T at the cDNA level, p.Cys124Phe (C124F) at the protein level, and results in the change of a Cysteine to a Phenylalanine (TGC>TTC) in exon 3. This variant has not, to our knowledge, been published in the literature as either a mutation or a benign polymorphism. CHEK2 Cys124Phe was not observed in approximately 6,500 individuals of European and African American ancestry in the NHLBI Exome Sequencing Project, indicating it is not a common benign variant in these populations. Since Cysteine and Phenylalanine differ in polarity, charge, size or other properties, this is considered a non-conservative amino acid substitution. CHEK2 Cys124Phe occurs at a position that is not conserved and is located in the FHA domain (Desrichard 2011, Roeb 2012). In silico analyses are inconsistent regarding the effect this variant may have on protein structure and function. Based on currently available information, it is unclear whether CHEK2 Cys124Phe is a pathogenic mutation or a benign variant.

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