1. School
of Biomolecular and Biomedical Science, Centre for Synthesis and Chemical
Biology, UCD Conway Institute, University College Dublin, Belfield, Dublin 4, Ireland
2. Department
of Biochemistry and Molecular Biology, Department
of Chemistry, University of British Columbia, 2350 Health Sciences Mall, Vancouver, BC V6T 1Z3, Canada
3. Department
of Biophysics, Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218, U.S.A.
4. Department
of Biology, University of Copenhagen, Ole Maaløes Vej 5, 2200 Copenhagen N, Denmark