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Figure 2.
Figure 2 (a) BX 528 bound to pp-CpB, A subunit. Green lines
depict hydrogen bonds. The loop containing Ile247 and Tyr248
forms a bridge over the S1' binding site and obscures the view.
This loop is omitted from most of the figures for the sake of
clarity. Arg127, which forms the floor of the S2 pocket, was
also omitted from most of the figures. (b) Divergent stereoview
of the pp-CpB-BX 528 complex showing the electron density
surrounding BX 528. The residues omitted in (a) are shown. The
S1', S1 and S2 subsites are labeled in red. The electron density
was drawn for the 2F[o] - F[c] map contoured at 1  using
the "blob" option in XtalView (McGee, 1992[McGee, D. E. (1992).
J. Mol. Graph. 10, 44-46.]) with a 2 Å cutoff. Some stray
density from neighboring atoms was removed by hand.
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