FIGURE 3.
Binding of GS-PAP (A) and morin (B) in the putative H-site of PtGSTU20. Putative H-site of PtGSTU20 is a well-delineated cavity deeply inserted between the α4 and α6 helices of the C-terminal domain. Both conformations of GS-PAP are shown. The GS-PAP (A) and morin (B) ligands are represented in sticks as their surrounding residues. Intermolecular contacts are materialized as dashed lines. The N- and C-terminal domains are colored orange and magenta, respectively, and ligands are colored green. Non-carbon atoms are colored according to their types (red, oxygen; blue, nitrogen; yellow, sulfur).