Figure 7 - full size

 

Figure 7.
Figure 7. The 12 residues of the EF-hand site II of N-TnC. Calcium is shown as a magenta sphere. Water molecules (water 9 is in the axial position) are shown as cyan spheres. Hydrogen bonds are denoted as broken yellow lines. (a) Liganding residues in the 2-Ca 2+ form; (b) hydrogen bonding patterns within the 2-Ca 2+ form; (c) a similar view of site II in the apo 0-Ca 2+ form of N-TnC.

The above figure is reprinted by permission from Elsevier: J Mol Biol (1997, 273, 238-255) copyright 1997.