There are errors in the author affiliations. The affiliations should appear as shown here:Bernard Moussian1☯¤a, Annalisa Letizia2☯, Guillermo Martínez-Corrales2☯, Bárbara Rotstein2¤b, Andreu Casali3 and Marta Llimargas2*1. Animal Genetics, Interfaculty Institute for Cell Biology, University of Tuebingen, Tuebingen, Germany, 2. Institut de Biologia Molecular de Barcelona, CSIC. Barcelona, Spain, 3. Institute for Research in Biomedicine (IRB Barcelona), Barcelona, Spain¤a. Present address: Institut de Biologie Valrose, UNS Université Nice Sophia Antipolis, Nice, France¤b. Present address: Fachbereich Biologie/Chemie, University of Osnabrück, Osnabrück, Germany☯ These authors contributed equally to this work.* mlcbmc@ibmb.csic.esThe acknowledgments are incorrect. The acknowledgments should appear as shown here: