1. Department
of Chemistry, Wichita State University, 1845 North Fairmount Avenue, Wichita, Kansas 67260, United States
2. Department of Diagnostic Medicine & Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, Kansas 66506, United States
3. Protein
Structure Laboratory,The University of Kansas, Lawrence, Kansas 66047, United States
4. IMCA-CAT,
Hauptman-Woodward Medical Research Institute, APS Argonne National Laboratory, Argonne, Illinois 60439, United States