Affiliation: | 1. Architecture et Fonction des Macromolécules Biologiques, CNRS and Universités d''Aix-Marseille I et II, UMR 6098, ESIL Case 925, Marseille, France.; 2. Molecular Virology Laboratory, Department of Medical Microbiology, Center of Infectious Diseases, Leiden University Medical Center, Leiden, The Netherlands.;University of California Irvine, United States of America |