ClinVar Miner

Submissions for variant NM_000321.3(RB1):c.2027T>C (p.Leu676Ser)

dbSNP: rs1566235448
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Total submissions: 2
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Mendelics RCV000709348 SCV000838925 uncertain significance Retinoblastoma 2018-07-02 criteria provided, single submitter clinical testing
Invitae RCV000709348 SCV001393034 uncertain significance Retinoblastoma 2019-07-23 criteria provided, single submitter clinical testing 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. This variant has not been reported in the literature in individuals with RB1-related conditions. ClinVar contains an entry for this variant (Variation ID: 584872). This variant is not present in population databases (ExAC no frequency). This sequence change replaces leucine with serine at codon 676 of the RB1 protein (p.Leu676Ser). The leucine residue is highly conserved and there is a large physicochemical difference between leucine and serine.

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