ClinVar Miner

Submissions for variant NM_000321.3(RB1):c.784C>T (p.Arg262Trp)

gnomAD frequency: 0.00001  dbSNP: rs556201144
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Total submissions: 4
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Labcorp Genetics (formerly Invitae), Labcorp RCV000466550 SCV000551827 likely benign Retinoblastoma 2023-12-18 criteria provided, single submitter clinical testing
Mendelics RCV000466550 SCV000838919 uncertain significance Retinoblastoma 2018-07-02 criteria provided, single submitter clinical testing
Ambry Genetics RCV002411502 SCV002669295 likely benign Hereditary cancer-predisposing syndrome 2023-01-05 criteria provided, single submitter clinical testing This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity.
All of Us Research Program, National Institutes of Health RCV000466550 SCV004844632 uncertain significance Retinoblastoma 2023-12-01 criteria provided, single submitter clinical testing This missense variant replaces arginine with tryptophan at codon 262 of the RB1 protein. Computational prediction is inconclusive regarding the impact of this variant on protein structure and function (internally defined REVEL score threshold 0.5 < inconclusive < 0.7, PMID: 27666373). To our knowledge, functional studies have not been reported for this variant. This variant has not been reported in individuals affected with RB1-related disorders in the literature. This variant has been identified in 5/251170 chromosomes in the general population by the Genome Aggregation Database (gnomAD). The available evidence is insufficient to determine the role of this variant in disease conclusively. Therefore, this variant is classified as a Variant of Uncertain Significance.

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