Figure 4 - full size

Figure 4.
Figure 4 2F[o]–F[c] electron density maps (stereo) contoured at 1.2 , for the GCPII complex with GPI-18431 (A), phosphate (B), and L-glutamate (C). Zinc ions are shown in dark green, chloride in yellow. Ligands are shown using green sticks and atom-color spheres. Note the different conformation of the 'glutarate sensor' (Lys699 and Tyr700) in (B), which is caused by the absence of a glutarate moiety in the phosphate complex.