Figure 4 - full size

 

Figure 4.
FIG. 4. Thrombin and its interactions with inhibitors. a, superposition, in stereo, of thrombin or S195A thrombin structures of complexes with PPACK (gold) (Protein Data Bank code 1HAI [PDB] ), with BPTI (green) (Protein Data Bank code 1BTH [PDB] ), and with heparin cofactor II (red) (Protein Data Bank code 1JMO [PDB] ), showing the identical conformations of all regions except the surface loops flanking the active site, particularly the 60 loop and 150 loop. b, stereo representation of the P5-P5' residues of [1]PI Pittsburgh (cyan) from the noncovalent complex with S195A trypsin docked into the thrombin structure found in the noncovalent complex of S195A thrombin with heparin cofactor II (HCII in magenta).

The above figure is reprinted by permission from the ASBMB: J Biol Chem (2003, 278, 37881-37887) copyright 2003.