1. Department of PharmacologySchool of MedicineUniversity of North Carolina Chapel Hill NC 27599 USA
2. Structural Genomics Consortium, UNC Eshelman School of PharmacyUniversity of North Carolina Chapel Hill NC 27599 USA
3. Division of Pharmacotherapy and Experimental Therapeutics, UNC Eshelman School of PharmacyUniversity of North Carolina Chapel Hill NC 27599 USA
4. School of PharmacyFaculty of Health SciencesUniversity of Eastern Finland 70211 Kuopio Finland
5. School of ChemistryUniversity of Southampton Southampton SO17 1BJ UK
6. Lineberger Comprehensive Cancer CenterUniversity of North Carolina Chapel Hill NC 27599 USA