1. Department
of Biology, Molecular Basis of Disease Program, Georgia State University, Atlanta, Georgia 30303, United States
2. Laboratory
of Chemical Physics, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, DHHS, Bethesda, Maryland 20892-0520, United States
3. Department
of Chemistry and Medicinal Chemistry, Purdue University, West Lafayette, Indiana 47907, United States