1. Institut de
Biologie et de Technologie
de Saclay, CEA Saclay, 91191 Gif/Yvette
Cedex, France
2. School of
Biological and Chemical
Sciences, Queen Mary University of London, Mile End, Bancroft Road, London E1 4NS, United Kingdom
3. Department of Molecular Biology
and Biotechnology, University of Sheffield, Firth Court, Western Bank, Sheffield S10 2TN, United Kingdom