ClinVar Miner

Submissions for variant NM_000074.3(CD40LG):c.692T>G (p.Leu231Trp)

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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Invitae RCV003512586 SCV004327430 uncertain significance Hyper-IgM syndrome type 1 2023-11-17 criteria provided, single submitter clinical testing This sequence change replaces leucine, which is neutral and non-polar, with tryptophan, which is neutral and slightly polar, at codon 231 of the CD40LG protein (p.Leu231Trp). This variant is not present in population databases (gnomAD no frequency). This missense change has been observed in individual(s) with hyper IgM syndrome (PMID: 35874699). 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 expected to disrupt CD40LG protein function with a positive 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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