ClinVar Miner

Submissions for variant NM_001127222.2(CACNA1A):c.889G>A (p.Gly297Arg)

dbSNP: rs1168625480
Minimum review status: Collection method:
Minimum conflict level:
ClinVar version:
Total submissions: 3
Download table as spreadsheet
Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Labcorp Genetics (formerly Invitae), Labcorp RCV000686079 SCV000813582 pathogenic Episodic ataxia type 2; Developmental and epileptic encephalopathy, 42 2023-12-18 criteria provided, single submitter clinical testing This sequence change replaces glycine, which is neutral and non-polar, with arginine, which is basic and polar, at codon 297 of the CACNA1A protein (p.Gly297Arg). This variant is not present in population databases (gnomAD no frequency). This missense change has been observed in individual(s) with episodic ataxia (PMID: 26814174, 28431595, 30891074). In at least one individual the variant was observed to be de novo. It has also been observed to segregate with disease in related individuals. ClinVar contains an entry for this variant (Variation ID: 566307). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is expected to disrupt CACNA1A protein function with a positive predictive value of 95%. For these reasons, this variant has been classified as Pathogenic.
Athena Diagnostics RCV000710984 SCV000841300 uncertain significance not provided 2020-02-28 criteria provided, single submitter clinical testing
GeneDx RCV000710984 SCV001779624 pathogenic not provided 2022-04-27 criteria provided, single submitter clinical testing In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Not observed at significant frequency in large population cohorts (gnomAD); This variant is associated with the following publications: (PMID: 26814174, 29482223, 28431595, 30891074, 32116539, 32899500, 34507393, 34263451)

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.