Ryanodine receptor (RyR), a calcium release channel within the sarcoplasmic reticulum (SR) membrane, is a key protein in skeletal and cardiac excitation-contraction coupling.

• Ryanodine受体(ryanodine receptor, RyR)是位于细胞内肌质网(sarcoplasmic reticulum, SR)膜上的钙释放通道，是骨骼肌和心肌细胞兴奋-收缩偶联过程中的关键蛋白。