22 kDa protein,calcium binding protein amplified in mutlidrug-resistant cells,CP22,CP-22,H_RG167B05.1,SCN,sorcin,V19.
Calcium-binding protein that modulates excitation-contraction coupling in the heart. Contributes to calcium homeostasis in the heart sarcoplasmic reticulum. Modulates the activity of RYR2 calcium channels.