Figure 3

Linker loop residues orientation. Structures superimposition showing linker loop residues orientations in native (Cyan) and NADP+ bound (Orange) structures. The catalytic cysteine is in the attacking conformation for both structures, while the glutamic acid is in the “In” conformation for the native structure or the intermediate conformation for the NADP-bound structure. The orientation of the residues from the linker loop Leu262 and Gly263 is shown. The hydrogen bound stabilizing the glutamic acid is shown in dashes.