Incomplete APOBEC 3 G / F Neutralization by HIV-1 Vif Mutants Facilitates the Genetic Evolution from CCR 5 to CXCR 4 Usage

Claudia Alteri, Matteo Surdo, Maria Concetta Bellocchi, Patrizia Saccomandi, Fabio Continenza, Daniele Armenia, Lucia Parrotta, Luca Carioti, Giosuè Costa, Slim Fourati, Fabiola Di Santo, Rossana Scutari, Silvia Barbaliscia, Valentina Fedele, Stefania Carta, Emanuela Balestra, Stefano Alcaro, Anne Genevieve Marcelin, Vincent Calvez, Francesca Ceccherini-Silberstein, Anna Artese, Carlo Federico Perno, Valentina Svicher University of Rome “Tor Vergata,” Department of Experimental Medicine and Surgery, Rome, Italy; INMI L. Spallanzani, Rome, Italy; Università Magna Graecia di Catanzaro, Dipartimento di Scienze della Salute, Campus Universitario, Catanzaro, Italy; Department of Virology, Hospital “Pitie Salpietrere,” Paris, France