Figure 2 - full size

 

Figure 2.
Figure 2. Stereo ribbon representation of the ternary complex. Antithrombin is gold, with the exception of the reactive center loop (cyan). Thrombin is red and the 16-mer heparin is in stick form, with those residues that are visible in the electron density in black and those that are modeled in green.

The above figure is reprinted by permission from Macmillan Publishers Ltd: Nat Struct Mol Biol (2004, 11, 863-867) copyright 2004.