ClinVar Miner

Submissions for variant NM_030930.4(UNC93B1):c.1121G>A (p.Arg374Gln)

gnomAD frequency: 0.00001  dbSNP: rs1346342774
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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 RCV000795586 SCV000935054 uncertain significance Herpes simplex encephalitis, susceptibility to, 1 2020-01-28 criteria provided, single submitter clinical testing This sequence change replaces arginine with glutamine at codon 374 of the UNC93B1 protein (p.Arg374Gln). The arginine residue is weakly conserved and there is a small physicochemical difference between arginine and glutamine. 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. Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Tolerated"; PolyPhen-2: "Benign"; Align-GVGD: "Not Available". The glutamine amino acid residue is found in multiple mammalian species, suggesting that this missense change does not adversely affect protein function. These predictions have not been confirmed by published functional studies and their clinical significance is uncertain. This variant has not been reported in the literature in individuals with UNC93B1-related disease. The frequency data for this variant in the population databases is considered unreliable, as metrics indicate insufficient coverage at this position in the ExAC database.

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