1. Department
of Chemical Physics, Lund University, P.O. Box 124, SE-221-00 Lund, Sweden
2. Glasgow
Biomedical Research Centre, Institute of Molecular, Cell and Systems
Biology, University of Glasgow, 120 University Place, Glasgow G12 8TA, Scotland/U.K.
3. Department
of Biomolecular Science, Faculty of Science, Toho University, 2-2-1
Miyama, Funabashi, Chiba 274-8510, Japan