A331T (p.Ala331Thr) variant of CLCN1 (Chloride channel protein 1)
A331T (p.Ala331Thr) in CLCN1 (Chloride channel protein 1) is a missense change. Clinical records from ClinVar, EBI, and UniProt describe it as likely pathogenic in the context of Congenital myotonia, autosomal dominant form; Congenital myotonia, autosomal rec. The available variant effect predictions contribute to a CATVariant prioritization score of 0.90 / 1. The record also includes population frequency data, published literature, and structural context.
A331T (p.Ala331Thr) variant details
- p.Ala331Thr
- rs2487058978
- ClinGen CA369641787
- ClinVar RCV003781077
- Likely pathogenic
- Congenital myotonia, autosomal dominant form; Congenital myotonia, autosomal rec
- Missense
- Variant Prioritization Score for Impact Estimate 0.896
- REVEL 0.94
- CADD 32.00
- PolyPhen-2 1.00
- SIFT 0.02
- ClinVar: Likely pathogenic (Congenital myotonia, autosomal dominant form; Congenital myotoni)
- EBI: Likely pathogenic
- UniProt: Likely pathogenic
- Population evidence available
- Structural context available
- Cited in: EFNS guidelines on the molecular diagnosis of channelopathies, epilepsies, migraine, stroke, and dementias. (PMID 20298421)
- Cited in: Myotonia Congenita. (PMID 20301529)