ClinVar Miner

Submissions for variant NM_001322934.2(NFKB2):c.2595_2596del (p.Asp865fs)

dbSNP: rs2061278560
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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 RCV001203847 SCV001375026 likely pathogenic Immunodeficiency, common variable, 10 2021-10-01 criteria provided, single submitter clinical testing This sequence change creates a premature translational stop signal (p.Asp865Glufs*20) in the NFKB2 gene. While this is not anticipated to result in nonsense mediated decay, it is expected to disrupt the last 36 amino acid(s) of the NFKB2 protein. This variant is not present in population databases (ExAC no frequency). This variant has not been reported in the literature in individuals affected with NFKB2-related conditions. ClinVar contains an entry for this variant (Variation ID: 935289). Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may create or strengthen a splice site. Studies have shown that processing of p100 into active p52 depends upon phosphorylation of two conserved serine residues at amino acids 866 and 870 (PMID: 16303288, 24140114). This suggests that this frameshift variant, which disrupts both of these residues, is likely to prevent appropriate p100 phosphorylation and processing. 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.

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