1. Department of Biochemistry, Division of Infectious Disease, and Howard Hughes Medical Institute, University of Washington, Seattle, Washington 98195, Structural Genomics of Pathogenic Protozoa (SGPP) Consortium, Seattle, Washington 98185, Seattle Biomedical Research Institute, Seattle, Washington 98109, Hauptmann-Woodward Institute, Buffalo, New York 14203, Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, and SSRL, Stanford University, Stanford, California...