1. Institute for Research in Biomedicine (IRB Barcelona), Parc Científic de Barcelona, Baldiri Reixac, 10-12, 08028 Barcelona, Spain.
2. Institute of Molecular and Cell Biology, 61 Biopolis Drive, Proteos, Singapore 138673, Singapore.
3. Department of Biological Sciences, National University of Singapore, 14 Science Drive 4, Singapore 117543, Singapore.
4. ICREA, Parc Científic de Barcelona, Baldiri Reixac, 10-12, 08028 Barcelona, Spain.