ClinVar Miner

Submissions for variant NM_006920.6(SCN1A):c.4306-1G>A (rs1553522517)

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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Invitae RCV000550750 SCV000633858 pathogenic Early infantile epileptic encephalopathy 2019-07-18 criteria provided, single submitter clinical testing This sequence change affects an acceptor splice site in intron 22 of the SCN1A gene. It is expected to disrupt RNA splicing and likely results in an absent or disrupted protein product. This variant is not present in population databases (ExAC no frequency). Disruption of this splice site has been observed in individuals affected with Dravet syndrome/severe myoclonic epilepsy of infancy (PMID: 12821740, 29142202). ClinVar contains an entry for this variant (Variation ID: 461271). Donor and acceptor splice site variants typically lead to a loss of protein function (PMID: 16199547), and loss-of-function variants in SCN1A are known to be pathogenic (PMID: 17347258, 18930999). For these reasons, this variant has been classified as Pathogenic.

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