Figure 7
(a) The matched molecular pairs corresponding to these spheres indicates a series of low-molecular-weight molecules with large activity changes from very minor molecular transformations (e.g. adding a methyl group increases activity by over one log unit). (b) The three-dimensional conformations of these compounds (rainbow sticks) project into a hydrophobic pocket (tryptophan, TRP; tyrosine, TYR; phenylalanine, PHE), rationalizing the favourability of hydrophobic substituents. The protein is shown as white sticks in (b). |