ClinVar Miner

Submissions for variant NM_000199.5(SGSH):c.96C>A (p.Asp32Glu)

dbSNP: rs139850991
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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 RCV001910907 SCV002162375 uncertain significance Mucopolysaccharidosis, MPS-III-A 2021-08-14 criteria provided, single submitter clinical testing This sequence change replaces aspartic acid with glutamic acid at codon 32 of the SGSH protein (p.Asp32Glu). The aspartic acid residue is highly conserved and there is a small physicochemical difference between aspartic acid and glutamic acid. This variant is not present in population databases (ExAC no frequency). This variant has been observed in individual(s) with mucopolysaccharidosis type III (PMID: 18407553). 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.Asp32 amino acid residue in SGSH. Other variant(s) that disrupt this residue have been observed in individuals with SGSH-related conditions (PMID: 11182930), which suggests that this may be a clinically significant amino acid residue. 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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