24 Kalmodulina

Figurę 18-17 X-ray structure of rat testis calmodulin. *I*his monomcric 148-rcsidue protein, which is colored in rainbow order from N-terminus (blue) to C-tcrminus (red), contains two remarkably similar globular domains separated by a seven-turn a helix.The two Ca²⁺ ions bound to each domain are represented by cyan spheres.The side chains liganding the Ca²' ions are drawn in stick form colorcd according to atom typc (C green. N blue. and O red). [Based on an X-ray structure by Charles Bugg. University of Alabama at Birmingham. PDBid 3CLN.)

Kinemage Exercise 16*1