Fig. 6. Stereoview of the probable active site of PEPC.
H138, R396, K546, H579, R581, R587, R699, and aspartate are
shown in ball-and-stick representation. The figure is drawn in
the same orientation as Fig. 3a. The loop region of GRGGSIGRGG
is shown in blue. The missing loop from Lys-702 to Gly-708 is
shown as dots.