1. Departments of Chemistry and Molecular Biology and The Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, Mass Consortium Corporation, San Diego, California 92121, Department of Chemistry & Biochemistry, University of California, San Diego, La Jolla, California 92093-0314, and Environmental Molecular Sciences Laboratory, Department of Energy's Office of Biological and Environmental Research, Pacific Northwest National...