UniprotKB/SwissProt ID: CASQ2_MOUSE (O09161)
Gene Name: Casq2
Organism: Mus musculus (Mouse).
Function: Calsequestrin is a high-capacity, moderate affinity, calcium-binding protein and thus acts as an internal calcium store in muscle. The release of calcium bound to calsequestrin through a calcium release channel triggers muscle contraction. The skeletal muscle isoform (CASQ1) binds around 80 Ca(2+) ions, while the cardiac isoform (CASQ2) binds approximately 60 Ca(2+) ions (By similarity).
Other Modifications: View all modification sites in dbPTM
Protein Subcellular Localization: Sarcoplasmic reticulum lumen. Note=This isoform of calsequestrin occurs in the sarcoplasmic reticulum's terminal cisternae luminal spaces of cardiac and slow skeletal muscle cells.
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