ClinVar Miner

Submissions for variant NM_001165963.4(SCN1A):c.1264G>A (p.Val422Met)

dbSNP: rs886042528
Minimum review status: Collection method:
Minimum conflict level:
ClinVar version:
Total submissions: 4
Download table as spreadsheet
Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Eurofins Ntd Llc (ga) RCV000725185 SCV000334735 likely pathogenic not provided 2015-09-09 criteria provided, single submitter clinical testing
Baylor Genetics RCV000314247 SCV000807295 likely pathogenic Severe myoclonic epilepsy in infancy criteria provided, single submitter clinical testing
GeneDx RCV000725185 SCV001822952 pathogenic not provided 2020-02-03 criteria provided, single submitter clinical testing In silico analysis, which includes protein predictors and evolutionary conservation, supports a deleterious effect; This substitution is predicted to be in the cytoplasmic loop between first and second homologous domains; Not observed in large population cohorts (Lek et al., 2016); Missense variants in this gene are often considered pathogenic (Stenson et al., 2014); This variant is associated with the following publications: (PMID: 31864146, 29056246, 22848613, 25326635, 24776920, 17347258, 23891399)
PreventionGenetics, part of Exact Sciences RCV003955449 SCV004771920 likely pathogenic SCN1A-related condition 2023-12-15 criteria provided, single submitter clinical testing The SCN1A c.1264G>A variant is predicted to result in the amino acid substitution p.Val422Met. This variant has been reported in two individuals with infantile epilepsy or Dravet syndrome (Kwong et al. 2012. PubMed ID: 22848613; Butler et al. 2017. PubMed ID: 29056246), and in Kwong et al. the variant was determined to be de novo. This variant has not been reported in a large population database (http://gnomad.broadinstitute.org), indicating it is rare. This variant resides on the cytoplasmic side of the S6 segment in a region where disease-associated variants are common (affected residues include 418, 419, 420, 421, and 422; see, HGMD). A gene-specific machine learning-based model for clinical prediction indicates this variant is pathogenic with 93% likelihood (Heyne et al. 2020. PubMed ID 32801145). This variant is interpreted as likely pathogenic.

The information on this website is not intended for direct diagnostic use or medical decision-making without review by a genetics professional. Individuals should not change their health behavior solely on the basis of information contained on this website. Neither the University of Utah nor the National Institutes of Health independently verfies the submitted information. If you have questions about the information contained on this website, please see a health care professional.