1. School of Chemistry and Biochemistry and the Petit Institute for Bioscience and Bioengineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0400, Sandler Center for Basic Research in Parasitic Diseases, Byers Hall, University of California San Francisco, San Francisco, California 94158, Institute of Parasitology, Biology Centre of the Academy of Sciences of the Czech Republic, České Budějovice, CZ-370 05, Czech Republic, and Department of Chemistry, Whitman College, 345 Boyer Avenue, Walla...