3us3 | pdb_00003us3

Recombinant rabbit skeletal calsequestrin-MPD complex

spinqualitylabelsall models 3us3, resolution 1.74Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 3us3 is a 1 chain structure with sequence from Oryctolagus cuniculus. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 1.738Å Ligands: CA, MPD, MRD, NA Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function CASQ1_RABIT 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).

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