ClinVar Miner

Submissions for variant NM_020661.4(AICDA):c.238T>C (p.Trp80Arg)

dbSNP: rs104894320
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Total submissions: 2
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Labcorp Genetics (formerly Invitae), Labcorp RCV000005431 SCV003441197 uncertain significance Hyper-IgM syndrome type 2 2022-06-30 criteria provided, single submitter clinical testing This variant disrupts the p.Trp80 amino acid residue in AICDA. Other variant(s) that disrupt this residue have been observed in individuals with AICDA-related conditions (Invitae), which suggests that this may be a clinically significant amino acid residue. Experimental studies have shown that this missense change affects AICDA function (PMID: 22715099). Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be disruptive. ClinVar contains an entry for this variant (Variation ID: 5124). This missense change has been observed in individuals with clinical features of hyper IgM syndrome (PMID: 11007475; Invitae). This variant is not present in population databases (gnomAD no frequency). This sequence change replaces tryptophan, which is neutral and slightly polar, with arginine, which is basic and polar, at codon 80 of the AICDA protein (p.Trp80Arg). 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.
OMIM RCV000005431 SCV000025613 pathogenic Hyper-IgM syndrome type 2 2000-09-01 no assertion criteria provided literature only

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