ClinVar Miner

Submissions for variant NM_001024845.3(SLC6A9):c.1435G>A (p.Gly479Arg)

dbSNP: rs1557668170
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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 RCV001309701 SCV001499208 uncertain significance Atypical glycine encephalopathy 2020-10-11 criteria provided, single submitter clinical testing 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. Nucleotide substitutions within the consensus splice site are a relatively common cause of aberrant splicing (PMID: 17576681, 9536098). Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may disrupt the consensus splice site, but this prediction has not been confirmed by published transcriptional studies. 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 disruptive, but 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 SLC6A9-related conditions. This variant is not present in population databases (ExAC no frequency). This sequence change replaces glycine with arginine at codon 552 of the SLC6A9 protein (p.Gly552Arg). The glycine residue is highly conserved and there is a moderate physicochemical difference between glycine and arginine. This variant also falls at the last nucleotide of exon 11 of the SLC6A9 coding sequence, which is part of the consensus splice site for this exon.

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