1. Department of Theoretical Chemistry, Lund University, Chemical Centre, P.O. Box 124, SE-221
00 Lund, Sweden
2. Department
of Biotechnology, Lund University, Chemical
Centre, P.O. Box 124, SE-221 00 Lund, Sweden
3. Department of Biochemistry, School of Biotechnology, Royal Institute of Technology, AlbaNova University
Center, 106 91 Stockholm, Sweden