ClinVar Miner

Submissions for variant NM_000321.3(RB1):c.1172C>T (p.Ser391Leu)

dbSNP: rs2138131143
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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 RCV001907321 SCV002118841 uncertain significance Retinoblastoma 2021-06-18 criteria provided, single submitter clinical testing This sequence change replaces serine with leucine at codon 391 of the RB1 protein (p.Ser391Leu). The serine residue is highly conserved and there is a large physicochemical difference between serine and leucine. This variant is not present in population databases (ExAC no frequency). This variant has not been reported in the literature in individuals with RB1-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 disruptive, but these predictions have not been confirmed by published functional studies and their clinical significance is uncertain. 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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