Figure 3 - full size

 

Figure 3.
Figure 3. Stereo view of the ligand binding site in the structures of W168F mutant of PfTIM complexed with sulfate and G2P. (a) Fit of the sulfate ion to the electron density in a F[obs] -F[calc] omit map contoured at 2.5s. (b) Superposition of the active sites of sulfate complexes of TrypTIM (green), C. elegans TIM (indigo) and W168F mutant of PfTIM (colored by atom) showing the differences in the protein-ligand interactions. (c) G2P at the active site of the B-subunit of W168F-G2P complex is shown with density from the F[obs] -F[calc] omit map contoured at 2.5s. (d) Hydrogen bonding interactions (dotted lines) of G2P with the polypeptide.

The above figure is reprinted by permission from Elsevier: J Mol Biol (2004, 343, 671-684) copyright 2004.