Prof. Ken-ichi Arai has received his M.D. degree in 1967 from Faculty of Medicine, the University of Tokyo and Ph. D. degree in Biochemistry in 1974 from Department of Chemistry, Institute of Medical Science, University of Tokyo. He became an Instructor of Chief of Department of Chemistry, Institute of Medical Science, University of Tokyo in 1974, a Fellow of Department of Biochemistry, Stanford University School of Medicine (1977-1980). After this position, Dr. Arai became Director in Molecular Biology of DNAX Research Institute of Molecular and Cellular Biology, U.S.A. (1981-1990), Consulting Professor of Department of Biochemistry and Cancer Biology Program, Stanford University School of Medicine (1984-1990), Professor of Department of Molecular and Developmental Biology, Institute of Medical Science, University of Tokyo (1989-2004), Visiting Professor of Institute of Immunology and Neuroscience, Faculty of Medicine, Chiba University (1991-1994) and Visiting Professor of Tsukuba Advanced Research Alliance (TARA), Tsukuba University (1995 - 1998). Dr. Arai served as a Dean of Institute of Medical Science, University of Tokyo (1998 - 2003), and an Acting Director of Tokyo Metropolitan Institute of Medical Science (2003 - 2006). Dr. Arai received the notable award of the Young Investigator Award (1976) from the Japanese Biochemical Society for studies on the role of GTP and polypeptide elongation factors. His experience in US and Japan has led him to establish the Asia- Pacific International Molecular Biology Network (A-IMBN) in 1997 and now he serves as Founding President. His professional specificity is Biochemistry, Molecular Biology (Enzyme mechanism of DNA replication, gene expression, and signal transduction), Molecular Immunology and Hematology.