Figure 7.

Comparisons of other structures to rBbPstS. (A) VcPstS superposed on rBbPstS. The rBbPstS molecule is light gray, and VcPstS (PDB accession code 1TWY) is shown in darker gray. The β-hairpin that is present in VcPstS but not in rBbPstS is circled. This view is rotated from that of Figure 4 to emphasize the position of the hairpin. (B) EcPBP superposed on rBbPstS. The coloration of rBbPstS is as in part A, while EcPBP (open form, PDB accession code 1OIB) is shown in the darker shade. The orientation is the same as that shown in Fig. 4. The C-terminal extension present in EcPBP but not in rBbPstS is circled.