ClinVar Miner

Submissions for variant NM_001167.4(XIAP):c.643C>T (p.Arg215Cys)

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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 RCV002623537 SCV003504678 uncertain significance X-linked lymphoproliferative disease due to XIAP deficiency 2023-11-04 criteria provided, single submitter clinical testing This sequence change replaces arginine, which is basic and polar, with cysteine, which is neutral and slightly polar, at codon 215 of the XIAP protein (p.Arg215Cys). This variant is present in population databases (rs778612322, gnomAD 0.004%), including at least one homozygous and/or hemizygous individual. This variant has not been reported in the literature in individuals affected with XIAP-related conditions. ClinVar contains an entry for this variant (Variation ID: 2187477). 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 XIAP protein function with a negative predictive value of 80%. 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.

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