1. Laboratories of Molecular Pharmacology, National Cancer Institute, Bethesda, Maryland 20892,
United States
2. Laboratory
of Cell Engineering,
Department of Human Genome Research, Kazusa DNA Research Institute, 2-6-7 Kazusa-Kamatari, Kisarazu, Chiba 292-0818,
Japan
3. Department of Biomedical
Science,
Institute of Regenerative Medicine and Biofunction, Graduate School
of Medical Sciences, Tottori University, Nishi-cho, Yonago, Tottori, Japan
4. Wellcome Trust Centre for Cell
Biology, University of Edinburgh, Edinburgh
EH9 3JR, Scotland