Figure 5 - full size

 

Figure 5.
Figure 5. Stereo Diagrams of Metal Sites A through E(A) A frequently observed G•G metal ion binding site showing the involvement of water in outer-sphere coordination.(B) The “metal ion zipper” in the narrow major groove of loop E. The two strands are in green and blue.

The above figure is reprinted by permission from Cell Press: Cell (1997, 91, 705-712) copyright 1997.