1. Institute of Biostructures and Bioimaging-CNR, Via Mezzocannone 16, 80134 Naples, Italy
2. Interdepartmental Center of Bioactive Peptide, University of Naples Federico II, Via Mezzocannone 16, 80134 Naples, Italy
3. Institute of Crystallography-CNR, Via Amendola 122/O, 70126 Bari, Italy