1. Higuchi Biosciences Center, University of Kansas; Lawrence Kansas 66047
2. Department of Molecular Biosciences; University of Kansas; Lawrence Kansas 66045
3. Department of Biochemistry and Molecular Biophysics; Kansas State University; Manhattan Kansas 66506
4. Protein Structure Laboratory; Del Shankel Structural Biology Center, University of Kansas; Lawrence KS 66045
5. IMCA-CAT, Hauptman-Woodward Medical Research Institute; Argonne Illinois 60439
6. Department of Pharmaceutical Chemistry; University of Kansas; Lawrence Kansas 66047