ClinVar Miner

Submissions for variant NM_007194.4(CHEK2):c.1017T>G (p.His339Gln)

dbSNP: rs2052614326
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Total submissions: 2
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Color Diagnostics, LLC DBA Color Health RCV001185888 SCV001352197 uncertain significance Hereditary cancer-predisposing syndrome 2023-12-06 criteria provided, single submitter clinical testing This missense variant replaces histidine with glutamine at codon 339 of the CHEK2 protein. Computational prediction suggests that this variant may have deleterious impact on protein structure and function (internally defined REVEL score threshold >= 0.7, PMID: 27666373). To our knowledge, functional studies have not been reported for this variant. This variant has been reported in an individual affected with colon cancer (PMID: 37306523). This variant has not been identified in the general population by the Genome Aggregation Database (gnomAD). The available evidence is insufficient to determine the role of this variant in disease conclusively. Therefore, this variant is classified as a Variant of Uncertain Significance.
Invitae RCV001210909 SCV001382421 uncertain significance Familial cancer of breast 2023-04-20 criteria provided, single submitter clinical testing This variant is not present in population databases (gnomAD no frequency). 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. Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may disrupt the consensus splice site. An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. ClinVar contains an entry for this variant (Variation ID: 924520). This variant has not been reported in the literature in individuals affected with CHEK2-related conditions. This sequence change replaces histidine, which is basic and polar, with glutamine, which is neutral and polar, at codon 339 of the CHEK2 protein (p.His339Gln).

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