RYR2（ryanodine receptor 2），癌症关联基因，基因ID：6262，该基因编码在心肌肌浆网中发现的ryanodine受体编码蛋白是钙通道的组成部分之一，由ryanodine受体蛋白四聚体和fk506结合蛋白1b蛋白四聚体组成，它们向心肌提供钙。该基因突变与应激诱导的多形性室性心动过速和致心律失常的右心室发育不良有关。[由RefSeq提供，2008年7月]This gene encodes a ryanodine receptor found in cardiac muscle sarcoplasmic reticulum. The encoded protein is one of the components of a calcium channel， composed of a tetramer of the ryanodine receptor proteins and a tetramer of FK506 binding protein 1B proteins， that supplies calcium to cardiac muscle. Mutations in this gene are associated with stress-induced polymorphic ventricular tachycardia and arrhythmogenic right ventricular dysplasia. [provided by RefSeq， Jul 2008]。