1. Gene Regulation and Chromatin Group, Imperial College London, London W12 0NN, UK
2. Bioinformatics and Computing, Imperial College London, London W12 0NN, UK
3. Microscopy Facility, MRC London Institute of Medical Sciences, Imperial College London, London W12 0NN, UK
4. Institute of Clinical Sciences, Imperial College London, London W12 0NN, UK