Figure 4 - full size

 

Figure 4.
Figure 4. Stereo section of the final 2.65 Å 2F[obs] - F[ calc] electron density map (blue) contoured at 1 around the interface between Pl enzyme (green carbons) and SAK (yellow carbons). The view is similar to the standard orientation shown in Figs 2 and 5. Side chains from both molecules form an extended network of salt bridges and charged hydrogen bonds. The strong Arg 175(719)−Glu 46SAK salt bridge is buried from the solvent by Tyr 44SAK. Furthermore, Arg 43SAK and Tyr 44SAK protrude into the active site of Pl, providing more narrow subsite boundaries. Figure produced with SETOR^28.

The above figure is reprinted by permission from Macmillan Publishers Ltd: Nat Struct Biol (1998, 5, 917-923) copyright 1998.