1. Department of Applied BiologyGraduate School of Science and TechnologyKyoto Institute of Technology Sakyo‐ku Kyoto 606‐8585 Japan
2. Department of Biomedical ChemistryGraduate School of MedicineThe University of Tokyo 7‐3‐1 Hongo Bunkyo‐ku Tokyo 113‐0033 Japan
3. Department of BiochemistryAhmadu Bello University Zaria 2222 Nigeria
4. Department of Molecular and Cellular ParasitologyJuntendo University School of Medicine Tokyo 113‐8421 Japan
5. Systems and Structural Biology CenterRIKEN Tsurumi Yokohama 230‐0045 Japan
6. Graduate School of Pharmaceutical SciencesThe University of Tokyo Tokyo 113‐0033 Japan
7. Institute of Structural and Molecular BiologySchool of Biological SciencesUniversity of Edinburgh King's Buildings Edinburgh EH9 3BF UK
8. Laboratorio de Enzimología de ParásitosDepartamento de BiologíaUniversidad de Los Andes Mérida 5101 Venezuela