Figure 4 - full size

Figure 4.
FIGURE 4. Structural analysis of the catalytic cleft. A, accessible surface of molecules A (white-blue-red) and B (green-blue-red) in the asymmetric unit with MeOSuc-Ala-Ala-Pro-Ala-CMK shown for molecule A. B, semitransparent surface representation of the catalytic cleft of HAM2. The stick model in color-by-atom denotes MeOSuc-Ala-Ala-Pro-Ala-CMK bound to HAM2. Suc-Ala-Ala-Pro-Phe-CMK (magenta), covalently bound to the crystal structure of human chymase (37), is superimposed onto the HAM2 structure. Molecular figures were prepared with PyMOL (DeLano Scientific LLC, www.pymol.org).