Structure and binding conformation of R-bicalutamide. (a) W741L AR LBD-R-bicalutamide complex. (b) Structure and numbering scheme of R-bicalutamide (c) R-bicalutamide within the Fo-Fc simulated annealing omit map with R-bicalutamide omitted. Intramolecular hydrogen bonds are denoted by distances in Å. Nitrogen, blue; oxygen, red; carbon, black; sulfur, yellow; fluorine, white.