ClinVar Miner

Submissions for variant NM_001556.3(IKBKB):c.215A>G (p.Asn72Ser)

dbSNP: rs771764280
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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 RCV001321633 SCV001512470 uncertain significance Severe combined immunodeficiency due to IKK2 deficiency 2020-08-10 criteria provided, single submitter clinical testing 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. This sequence change replaces asparagine with serine at codon 72 of the IKBKB protein (p.Asn72Ser). The asparagine residue is highly conserved and there is a small physicochemical difference between asparagine and serine. This variant is present in population databases (rs771764280, ExAC 0.002%). This variant has not been reported in the literature in individuals with IKBKB-related conditions. Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt IKBKB protein function. Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may create or strengthen a splice site, but this prediction has not been confirmed by published transcriptional studies.

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