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Bound conformations of 1–5. Only heavy atoms are shown. The structures were superimposed using the center and root mean square commands in AMBER 11 and displayed in PyMOL. 20 conformers are shown for each molecule. A, 1, r.m.s.d. = 0.11 ± 0.09 Å. B, 2, r.m.s.d. = 0.47 ± 0.11 Å. C, 3, r.m.s.d. = 0.52 ± 0.10 Å. D, 4, r.m.s.d. = 0.39 ± 0.08 Å. E, 5, r.m.s.d. = 0.65 ± 0.30 Å.
