Sorcin
Function
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.
Tissue Specificity
Detected in cardiac myocytes.
Cellular localization
- Cytoplasm
- Sarcoplasmic reticulum membrane
- Peripheral membrane protein
- Cytoplasmic side
- Relocates to the sarcoplasmic reticulum membrane in response to elevated calcium levels.
Alternative names
Sorcin, 22 kDa protein, CP-22, V19, CP22, SRI