Updated project metadata. We developed a novel method for the identification of SUMO sites by expression of His-tagged SUMO mutants and affinity purification of SUMOylated proteins, followed by trypsin digestion and immunocapture of peptides containing diglycine signature tags. Lab Head: Dr Pascale Cossart, pascale.cossart@pasteur.fr Institut Pasteur Unité des Interactions Bactéries-Cellules, Inserm U604, INRA USC2020 25 rue du Dr. Roux 75015 Paris France