Figure 6.
Figure 6. Stereo representation of two clusters of negatively
charged residues in hv-DHFR. Water molecules are depicted as
black spheres and hydrogen bonds as dashed lines. (a)
Intramolecular cluster; (b) intermolecular cluster at the
interface of three molecules.
The above figure is reprinted
by permission from Cell Press:
Structure
(1998,
6,
75-88)
copyright 1998.
