1. Institute for Research in Biomedicine (IRB Barcelona), 08028 Barcelona, Spain
2. BSC-CRG-IRB
Joint Program in Computational Biology, Institute for Research in Biomedicine, 08028 Barcelona, Spain
3. Department
of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
4. Department
of Biochemistry and Molecular Biology, University of Barcelona, 08007 Barcelona, Spain