1. European
Molecular Biology Laboratory, European Bioinformatics Institute, Cambridge, U.K.
2. Department
of Biology, Institute of Molecular Systems Biology, ETH Zürich, Zürich 8093, Switzerland
3. College
of Science and College of Computer and Information Science, Northeastern University, Boston, Massachusetts 02115, United States
4. RWTH-Aachen,
Faculty of Medicine, Joint Research Center for Computational Biomedicine, Aachen D-52074, Germany
5. Department
of Science, Faculty of Science, University of Zürich, Zürich CH-8006, Switzerland