1. Laboratory for Translational Research, Harvard Medical School, One Kendal Square, Building 600, Cambridge, Massachusetts 02139, Laboratory of Peptide & Protein Chemistry & Biology, University of Firenze, Dipartimento di Chimica Organica, Polo Scientifico e Tecnologico, University of Firenze, Via della Lastruccia 13, I-50019 Sesto Fiorentino, Italy, Department of Chemistry, Indiana University, 800 E. Kirkwood, Bloomington, Indiana 47405, Dipartimento di Scienze Farmaceutiche, Via Ponte Don Melillo 11C,...