[1] Univ Pittsburgh, Sch Pharm, Dept Pharmaceut Sci, Pittsburgh, PA 15261 USA
[2] Univ Pittsburgh, Sch Pharm, Computat Chem Genom Screening Ctr, Pittsburgh, PA 15261 USA
[3] Univ Pittsburgh, NIH, Natl Ctr Excellence Computat Drug Abuse Res, Pittsburgh, PA 15261 USA
[4] Univ Pittsburgh, Drug Discovery Inst, Pittsburgh, PA 15261 USA
[5] Univ Pittsburgh, Sch Med, Dept Computat Biol, Pittsburgh, PA 15261 USA
[6] Univ Pittsburgh, Sch Med, Dept Struct Biol, Pittsburgh, PA 15261 USA