1. Faculty of Advanced Life Sciences, Hokkaido University, Kita-ku, Sapporo 060-0810, Japan
2. Institute of Molecular Biology and Genetics, Mahidol University, Salaya Campus, Nakornpathom 73170, Thailand
3. Department of Biological Sciences, Northeast Structural Genomics Consortium, Columbia University, New York, New York 10027
4. IRTSV, CEA/CNRS/UJF, LCBM, UMR5249, 38054 Grenoble, France