ClinVar Miner

Submissions for variant NM_003896.4(ST3GAL5):c.167A>G (p.Lys56Arg)

dbSNP: rs1336784366
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Total submissions: 2
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Labcorp Genetics (formerly Invitae), Labcorp RCV001352376 SCV001546923 uncertain significance GM3 synthase deficiency 2021-09-01 criteria provided, single submitter clinical testing This sequence change replaces lysine with arginine at codon 56 of the ST3GAL5 protein (p.Lys56Arg). The lysine residue is highly conserved and there is a small physicochemical difference between lysine and arginine. This variant is not present in population databases (ExAC no frequency). This variant has not been reported in the literature in individuals affected with ST3GAL5-related conditions. 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: "Benign"; Align-GVGD: "Class C0"). 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.
Ambry Genetics RCV002548484 SCV003672213 uncertain significance Inborn genetic diseases 2022-12-21 criteria provided, single submitter clinical testing The c.167A>G (p.K56R) alteration is located in exon 2 (coding exon 2) of the ST3GAL5 gene. This alteration results from a A to G substitution at nucleotide position 167, causing the lysine (K) at amino acid position 56 to be replaced by an arginine (R). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear.

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