ClinVar Miner

Submissions for variant NM_001122630.2(CDKN1C):c.786del (p.Asp263fs)

dbSNP: rs1848914894
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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 RCV001054924 SCV001219283 likely pathogenic Beckwith-Wiedemann syndrome 2019-12-04 criteria provided, single submitter clinical testing This variant has not been reported in the literature in individuals with CDKN1C-related conditions. 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. This variant disrupts the C-terminus of the CDKN1C protein. Other variant(s) that disrupt this region (p.Ser282) have been observed in individuals with CDKN1C-related conditions (PMID: 19386358, 10424811). This suggests that this may be a clinically significant region of the protein. Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant is not likely to affect RNA splicing, but this prediction has not been confirmed by published transcriptional studies. This variant is not present in population databases (ExAC no frequency). This sequence change results in a frameshift in the CDKN1C gene (p.Asp274Ilefs*47). While this is not anticipated to result in nonsense mediated decay, it is expected to disrupt the last 43 amino acids of the CDKN1C protein and extend the protein by an additional 4 amino acids.

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