ClinVar Miner

Submissions for variant NM_001122955.4(BSCL2):c.765G>A (p.Ser255=)

gnomAD frequency: 0.00001  dbSNP: rs774120735
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Total submissions: 2
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
GeneDx RCV002226102 SCV002504402 likely benign not provided 2018-08-10 criteria provided, single submitter clinical testing See Variant Classification Assertion Criteria.
Labcorp Genetics (formerly Invitae), Labcorp RCV003093890 SCV003021037 uncertain significance Charcot-Marie-Tooth disease type 2 2023-08-07 criteria provided, single submitter clinical testing This sequence change affects codon 191 of the BSCL2 mRNA. It is a 'silent' change, meaning that it does not change the encoded amino acid sequence of the BSCL2 protein. This variant also falls at the last nucleotide of exon 5, which is part of the consensus splice site for this exon. 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. Variants that disrupt 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 create or strengthen a splice site. ClinVar contains an entry for this variant (Variation ID: 1678788). This variant has not been reported in the literature in individuals affected with BSCL2-related conditions. This variant is present in population databases (rs774120735, gnomAD 0.006%).

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