1. 1Department Modeling of Biological Processes, University of Heidelberg, Heidelberg, Germany
2. 2Department of Computer Science, University of Oxford, Oxford, United Kingdom of Great Britain and Northern Ireland
3. 3The Babraham Institute, Cambridge, United Kingdom of Great Britain and Northern Ireland
4. 4EMBL European Bioinformatics Institute, Cambridge, United Kingdom of Great Britain and Northern Ireland
5. 5Auckland Bioengineering Institute, University of Auckland, Auckland, New Zealand
6. 6Department of Systems Biology and Bioinformatics, University of Rostock, Rostock, Germany