1. 1Oncogene Biology Laboratory, The Francis Crick Institute, 1 Midland Road London NW1 1AT, U.K.
2. 2Protein Phosphorylation Laboratory, Francis Crick Institute, 1 Midland Road, London NW1 1AT, U.K.
3. 3School of Cancer and Pharmaceutical Sciences, New Hunt's House, Guy's Campus, London SE1 1UL, U.K.
4. 4UCL Cancer Institute, University College London, 72 Huntley Street, London WC1E 6BT, U.K.