Figure 4 - full size

 

Figure 4.
Figure 4 A stereoview of the superimposed C^ chains of aspartic proteinases with known structure. Molecules A and B of AP, PP and EP are shown as thick lines in blue, red, yellow and green, respectively, and those of the other aspartic proteinases listed in Table 1-are shown as thin lines in grey. 23 strictly conserved residues are shown as large spheres in yellow for ten glycines and in green for other residues. 44 highly conserved residues are shown as small spheres in orange.

The above figure is reprinted by permission from the IUCr: Acta Crystallogr D Biol Crystallogr (2001, 57, 948-956) copyright 2001.