ClinVar Miner

Submissions for variant NM_000199.5(SGSH):c.927C>G (p.Ser309Arg)

dbSNP: rs1385473515
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Total submissions: 2
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Invitae RCV001341559 SCV001535438 likely pathogenic Mucopolysaccharidosis, MPS-III-A 2021-02-25 criteria provided, single submitter clinical testing This sequence change replaces serine with arginine at codon 309 of the SGSH protein (p.Ser309Arg). The serine residue is highly conserved and there is a moderate physicochemical difference between serine and arginine. This variant is not present in population databases (ExAC no frequency). In summary, the currently available evidence indicates that the variant is pathogenic, but additional data are needed to prove that conclusively. Therefore, this variant has been classified as Likely Pathogenic. 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 SGSH protein function. This variant has been observed in individual(s) with clinical features of mucopolysaccharidosis type III (Invitae). In at least one individual the data is consistent with the variant being in trans (on the opposite chromosome) from a pathogenic variant.
Genome-Nilou Lab RCV001341559 SCV002045156 uncertain significance Mucopolysaccharidosis, MPS-III-A 2021-11-07 criteria provided, single submitter clinical testing

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