ClinVar Miner

Submissions for variant NM_003098.3(SNTA1):c.770C>T (p.Ala257Val)

dbSNP: rs56157422
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Total submissions: 2
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Equipe Genetique des Anomalies du Developpement, Université de Bourgogne RCV000755690 SCV000883105 likely benign Long QT syndrome 12 2018-11-21 criteria provided, single submitter clinical testing
Ambry Genetics RCV002397523 SCV002674439 uncertain significance Cardiovascular phenotype 2021-07-07 criteria provided, single submitter clinical testing The p.A257V variant (also known as c.770C>T), located in coding exon 4 of the SNTA1 gene, results from a C to T substitution at nucleotide position 770. The alanine at codon 257 is replaced by valine, an amino acid with similar properties. This variant has been detected in an individual referred for genetic testing with a suspected diagnosis of long QT syndrome; however, details were limited (Marschall C et al. Cardiovasc Diagn Ther, 2019 Oct;9:S292-S298). This amino acid position is highly conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear.

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