Figure 1 - full size

 

Figure 1.
Figure 1. The molecules involved in he hydrogen bond chain between His64 an the zinc water molecule in native carbnic anhydrase at pH 7%. Distances and angles are; 64Nd' -2920HH-3180HH: (322 A. 196.7''. 2.73 A) and 2920HH-3180HH-2630HH: (2.7 A, lOS.l'', 2.79 A).

The above figure is reprinted by permission from Elsevier: J Mol Biol (1992, 227, 1192-1204) copyright 1992.