{{Rsnum
|rsid=193922809
|geno1=(A;A)
|geno2=(A;G)
|geno3=(G;G)
|Chromosome=19
|Orientation=plus
|Gene=RYR1
|position=38499975
|Gene_s=RYR1
|Assembly=GRCh38
|GenomeBuild=38.1
|dbSNPBuild=141
}}[[rs193922809]], aka p.Ala2428Thr or p.A2428T, is a SNP in the [[RYR1]] gene considered causative for [[malignant hyperthermia]],