ClinVar Miner

Submissions for variant NM_152419.3(HGSNAT):c.940A>G (p.Ile314Val)

gnomAD frequency: 0.00001  dbSNP: rs1446334240
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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Invitae RCV001231200 SCV001403712 uncertain significance Mucopolysaccharidosis, MPS-III-C; Retinitis pigmentosa 73 2022-01-07 criteria provided, single submitter clinical testing This sequence change replaces isoleucine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 314 of the HGSNAT protein (p.Ile314Val). This variant is present in population databases (no rsID available, gnomAD 0.0009%). This variant has not been reported in the literature in individuals affected with HGSNAT-related conditions. ClinVar contains an entry for this variant (Variation ID: 958096). 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 not expected to disrupt HGSNAT protein function. 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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