ClinVar Miner

Submissions for variant NM_000263.4(NAGLU):c.1081T>C (p.Trp361Arg)

gnomAD frequency: 0.00001  dbSNP: rs766000735
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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Invitae RCV001378698 SCV001576324 pathogenic Mucopolysaccharidosis, MPS-III-B; Charcot-Marie-Tooth disease axonal type 2V 2024-01-07 criteria provided, single submitter clinical testing This sequence change replaces tryptophan, which is neutral and slightly polar, with arginine, which is basic and polar, at codon 361 of the NAGLU protein (p.Trp361Arg). This variant is present in population databases (rs766000735, gnomAD 0.02%). This missense change has been observed in individual(s) with mucopolysaccharidosis type III (PMID: 23380547, 30070758). In at least one individual the data is consistent with being in trans (on the opposite chromosome) from a pathogenic variant. ClinVar contains an entry for this variant (Variation ID: 1067432). 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 NAGLU protein function with a positive predictive value of 95%. Experimental studies have shown that this missense change affects NAGLU function (PMID: 29979746). For these reasons, this variant has been classified as Pathogenic.

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