ClinVar Miner

Submissions for variant NM_001370658.1(BTD):c.817G>A (p.Gly273Ser)

dbSNP: rs762757117
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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 RCV001946342 SCV002214060 uncertain significance Biotinidase deficiency 2021-09-24 criteria provided, single submitter clinical testing This sequence change replaces glycine with serine at codon 293 of the BTD protein (p.Gly293Ser). The glycine residue is moderately conserved and there is a small physicochemical difference between glycine and serine. This variant is present in population databases (rs762757117, ExAC 0.001%). This variant has not been reported in the literature in individuals with BTD-related conditions. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated, but these predictions have not been confirmed by published functional studies and their clinical significance is uncertain. Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may create or strengthen a splice site, but this prediction has not been confirmed by published transcriptional studies. 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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