1. Department of Cell and Developmental Biology, Consortium for Mitochondrial Research, University College London, London WC1E 6BT, UK
2. The Francis Crick Institute, London NW1 1AT, UK
3. Department of Computer Sciences, University College London, London WC1E 6BT, UK
4. Department of Biomedical Sciences, University of Padua, 35131 Padua, Italy