1. Unit of Genomic Approaches to Membrane Traffic, Fondazione Mario Negri Sud, Santa Maria Imbaro, Chieti, Italy
2. Current address: Institut de Pharmacologie Moléculaire et Cellulaire CNRS and Associated International Laboratory (LIA) NEOGENEX CNRS and University of Nice-Sophia-Antipolis, Valbonne, France
3. Institute of Protein Biochemistry National Research Council, Naples, Italy
4. Laboratory of Tumour Cell Invasion, Fondazione Mario Negri Sud, Santa Maria Imbaro, Chieti, Italy