Definition of the interacting interfaces of Apobec3G and HIV-1 Vif using MAPPIT mutagenesis analysis by Catteeuw Dominiek, Uyttendaele Isabel, Heyden José, Peelman Frank, Lavens Delphine, Van Schouwbroeck Bertrand, Kurth Julia, Hallenberger Sabine, Clayton Reginald, Tavernier Jan