ClinVar Miner

Submissions for variant NM_000512.5(GALNS):c.1016T>G (p.Leu339Arg)

dbSNP: rs1244322663
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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 RCV001315817 SCV001506409 uncertain significance Mucopolysaccharidosis, MPS-IV-A 2020-07-31 criteria provided, single submitter clinical testing This sequence change replaces leucine with arginine at codon 339 of the GALNS protein (p.Leu339Arg). The leucine residue is highly conserved and there is a moderate physicochemical difference between leucine and arginine. This variant is not present in population databases (ExAC no frequency). This variant has not been reported in the literature in individuals with GALNS-related conditions. 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 GALNS 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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