1. Institute for Genomic Biology University of Illinois at Urbana-Champaign 1206 W. Gregory Dr. Urbana IL 61801 USA
2. Department of Chemistry Purdue University Herbert C. Brown Laboratory of Chemistry, Room 4103E 560 Oval Drive, Box 59 West Lafayette IN 47907 USA
3. Department of Medicinal Chemistry and Molecular Pharmacology Purdue University Herbert C. Brown Laboratory of Chemistry, Room 4103E 560 Oval Drive, Box 59 West Lafayette IN 47907 USA
4. Department of Microbiology University of Illinois at Urbana-Champaign, B103C&LSL 601 S. Goodwin Urbana IL 61801 USA