1. Center for Pharmaceutical Research and Innovation, Pharmaceutical Sciences Division; University of Kentucky College of Pharmacy; Lexington Kentucky 40536-0596
2. Midwest Center for Structural Genomics and Structural Biology Center; Biosciences Division, Argonne National Laboratory; Argonne Illinois 60439
3. Department of BioSciences; Rice University; Houston Texas 77005
4. School of Pharmacy, Department of Pharmaceutical Sciences; University of Maryland Eastern Shore; Princess Anne Maryland
5. Department of Biochemistry; University of Wisconsin-Madison; Madison Wisconsin 53706
6. Department of Chemistry; Rice University; Houston Texas 77005