1. Department
of Medicinal Chemistry, College of Pharmacy, University of Michigan, 428 Church St., Ann Arbor, Michigan 48109-1065, United States
2. Center
for Structural Biology, University of Michigan, 3358E Life Sciences Institute, 210
Washtenaw Ave., Ann Arbor, Michigan 48109-2216, United States
3. Computational and Structural Sciences, Medicines Research Centre, GlaxoSmithKline Research & Development, Gunnels Wood Road, Stevenage, Hertfordshire SG1 2NY, United Kingdom
4. Computational and Structural Sciences, GlaxoSmithKline Research & Development, 1250 South Collegeville Road, Collegeville, Pennsylvania 19426, United States