1. Centro de Investigaciones Biológicas (CIB-CSIC), Ramiro de Maeztu 9, E-28040 Madrid, Spain, Institut de Biologia Molecular de Barcelona (IBMB-CSIC) and Institute for Research in Biomedicine (IRB), Parc Científic de Barcelona, Baldiri Reixac 10, E-08028 Barcelona, Spain, Department of Biochemistry and Molecular Biology and Laboratori de Química Orgànica, Institut de Biomedicina de la Universitat de Barcelona, (IBUB), Faculty of Pharmacy, University of Barcelona, Avg. Diagonal 643, E-08028 Barcelona, Spain...