1. Dulbecco Telethon Institute, Department of Experimental Medicine and Biochemical Sciences, University of Rome Tor Vergata, Rome, Italy;
2. Laboratory of Cell Signaling, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Fondazione Santa Lucia, Rome, Italy;
3. Laboratory of Immunology and Signal Transduction, Department of Experimental Medicine and Biochemical Sciences, University of Rome Tor Vergata, Rome, Italy;
4. Laboratory of Neuroimmunology, IRCCS Fondazione Santa Lucia, Rome, Italy;
5. The David and Inez Myers Laboratory for Genetic Research, Department of Human Genetics and Biochemistry, Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel; and
6. Istituto di Biologia e Patologia Molecolari Consiglio Nazionale delle Ricerche, Rome, Italy