Affiliation: | (1) Institute of Biotechnology, University of Cambridge, Tennis Court Road, Cambridge, CB2 1QT, UK;(2) Wellcome/CRC Institute, University of Cambridge, Tennis Court Road, Cambridge, CB2 1QR, UK;(3) Centro de Biología Molecular Severo Ochoa (CSIC-UAM), Universidad Autónoma, Cantoblanco, 28049 Madrid, Spain;(4) Department of Cell Biology, John Innes Centre, Colney Lane, Norwich, NR4 7UH, UK; present addresses;(5) Present address: Peptide Therapeutics Ltd, 321 Cambridge Science Park, Milton Road, Cambridge, CB4 4WG, UK;(6) Present address: Joint Diseases Laboratory, McGill University, Shriners Hospital for Children, 1529 Cedar Avenue, Montreal, Quebec, Canada, H3G 1A6;(7) Present address: MRC Laboratory of Molecular Biology, Hills Road, Cambridge, CB2 2QH, UK |