ClinVar Miner

Submissions for variant NM_006772.3(SYNGAP1):c.1913+2_1913+5del

dbSNP: rs2151181120
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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 RCV002002948 SCV002276724 likely pathogenic Intellectual disability, autosomal dominant 5 2021-03-27 criteria provided, single submitter clinical testing Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may disrupt the consensus splice site, but this prediction has not been confirmed by published transcriptional studies. This variant has not been reported in the literature in individuals with SYNGAP1-related conditions. This variant is not present in population databases (ExAC no frequency). This sequence change affects a donor splice site in intron 11 of the SYNGAP1 gene. It is expected to disrupt RNA splicing. Variants that disrupt the donor or acceptor splice site typically lead to a loss of protein function (PMID: 16199547), and loss-of-function variants in SYNGAP1 are known to be pathogenic (PMID: 23161826, 23708187, 26989088). In summary, the currently available evidence indicates that the variant is pathogenic, but additional data are needed to prove that conclusively. Therefore, this variant has been classified as Likely Pathogenic.

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