ClinVar Miner

Submissions for variant NM_031443.4(CCM2):c.746-17C>T

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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 RCV002625799 SCV002953863 likely benign Cerebral cavernous malformation 2 2022-03-03 criteria provided, single submitter clinical testing
Women's Health and Genetics/Laboratory Corporation of America, LabCorp RCV003479435 SCV004223479 likely benign not specified 2023-11-07 criteria provided, single submitter clinical testing Variant summary: CCM2 c.746-17C>T alters a non-conserved nucleotide located at a position not widely known to affect splicing. Consensus agreement among computation tools predict no significant impact on normal splicing. However, these predictions have yet to be confirmed by functional studies. The variant allele was found at a frequency of 8e-06 in 251060 control chromosomes. The available data on variant occurrences in the general population are insufficient to allow any conclusion about variant significance. To our knowledge, no occurrence of c.746-17C>T in individuals affected with Cerebral Cavernous Malformation 2 and no experimental evidence demonstrating its impact on protein function have been reported. One submitter has cited clinical-significance assessments for this variant to ClinVar after 2014 and has classified the variant as likely benign. Based on the evidence outlined above, the variant was classified as likely benign.

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