Fig. 2.
Electrostatic surface potential of oxidized A2B2–GAPDH complexed with NADP. The sulfate ions present in the catalytic site of the crystallographic model are omitted from calculations. Blue depicts a positive potential and red depicts a negative one. The position of some residues is indicated. The tetramer is rotated by 90° along the Q axis with respect to Fig. 1 and viewed along the R axis. The relative potential scale ranges between −20 kBT/e and +20 kBT/e (kBT/e = 25.7 mV at 298 K). The image was produced by GRASP (36).