1. Department of Biochemistry, University of Mississippi Medical Center, Jackson, Mississippi 39216, United States
2. Department of Chemistry, Georgia State University, Atlanta, Georgia 30302, United States
3. Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, 321 Church Street SE, Minneapolis, Minnesota 55455, United States
4. Department of Chemistry, Jackson State University, Jackson, Mississippi 39217, United States