ClinVar Miner

Submissions for variant NM_000263.4(NAGLU):c.1694G>T (p.Arg565Leu) (rs104894598)

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Total submissions: 2
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Counsyl RCV000673096 SCV000798264 uncertain significance Mucopolysaccharidosis, MPS-III-B 2018-03-02 criteria provided, single submitter clinical testing
Invitae RCV001070181 SCV001235397 pathogenic Mucopolysaccharidosis, MPS-III-B; Charcot-Marie-Tooth disease, axonal type 2V 2019-02-19 criteria provided, single submitter clinical testing This sequence change replaces arginine with leucine at codon 565 of the NAGLU protein (p.Arg565Leu). The arginine residue is highly conserved and there is a moderate physicochemical difference between arginine and leucine. This variant is present in population databases (rs104894598, ExAC 0.006%). This variant has been observed to segregate with mucopolysaccharidosis type III in families (PMID: 23430803). ClinVar contains an entry for this variant (Variation ID: 557013). Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: Deleterious; PolyPhen-2: Probably Damaging; Align-GVGD: Class C0). This variant disrupts the p.Arg565 amino acid residue in NAGLU. Other variant(s) that disrupt this residue have been observed in individuals with NAGLU-related conditions (PMID: 10094189, 15933803), suggesting that it is a clinically significant residue. As a result, variants that disrupt this residue are likely to be causative of disease. For these reasons, this variant has been classified as Pathogenic.

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