ClinVar Miner

Submissions for variant NM_000071.3(CBS):c.921C>G (p.Gly307=)

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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Invitae RCV001056398 SCV001220840 uncertain significance Classic homocystinuria 2019-11-20 criteria provided, single submitter clinical testing This sequence change affects codon 307 of the CBS mRNA. It is a 'silent' change, meaning that it does not change the encoded amino acid sequence of the CBS protein. This variant is present in population databases (rs147875876, ExAC 0.03%). This variant has not been reported in the literature in individuals with CBS-related conditions. 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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