Total submissions: 4
| Submitter | RCV | SCV | Clinical significance | Condition | Last evaluated | Review status | Method | Comment |
|---|---|---|---|---|---|---|---|---|
| Invitae | RCV000229878 | SCV000289699 | likely pathogenic | Familial cancer of breast | 2018-02-08 | criteria provided, single submitter | clinical testing | 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. Donor and acceptor splice site variants typically lead to a loss of protein function (PMID: 16199547), and loss-of-function variants in CHEK2 are known to be pathogenic (PMID: 21876083, 24713400). This variant has not been reported in the literature in individuals with CHEK2-related disease. ClinVar contains an entry for this variant (Variation ID: 240751). This variant is not present in population databases (ExAC no frequency). This sequence change affects a donor splice site in intron 5 of the CHEK2 gene. It is expected to disrupt RNA splicing and likely results in an absent or disrupted protein product. |
| Ambry Genetics | RCV000571803 | SCV000666367 | likely pathogenic | Hereditary cancer-predisposing syndrome | 2023-06-30 | criteria provided, single submitter | clinical testing | The c.683+1G>A intronic variant results from a G to A substitution one nucleotide after coding exon 4 of the CHEK2 gene. This nucleotide position is highly conserved in available vertebrate species. In silico splice site analysis predicts that this alteration will weaken the native splice donor site. RNA studies have demonstrated that this alteration results in abnormal splicing in the set of samples tested (Ambry internal data). Alterations that disrupt the canonical splice site are expected to cause aberrant splicing, resulting in an abnormal protein or a transcript that is subject to nonsense-mediated mRNA decay. As such, this alteration is classified as Likely Pathogenic. |
| Myriad Genetics, |
RCV000229878 | SCV004044126 | likely pathogenic | Familial cancer of breast | 2023-06-26 | criteria provided, single submitter | clinical testing | This variant is considered likely pathogenic. This variant occurs within a consensus splice junction and is predicted to result in abnormal mRNA splicing of either an out-of-frame exon or an in-frame exon necessary for protein stability and/or normal function. |
| Zotz- |
RCV003333745 | SCV004041768 | likely pathogenic | Li-Fraumeni syndrome 2 | 2023-10-09 | no assertion criteria provided | clinical testing |