Affiliation: | 1.Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario Monte Sant’Angelo, via Cinthia, I-80126, Naples, Italy ;2.GSK Vaccines, Via Fiorentina, 1, 53100, Siena, Italy ;3.Institute of Protein Biochemistry, National Research Council, Via Pietro Castellino, 111, I-80126, Naples, Italy ;4.Laboratory of Microbial and Molecular Evolution, Department of Biology, University of Florence, via Madonna del Piano 6, I-50018, Sesto Fiorentino (Florence), Italy ; |