Fig. 4From: Mechanisms of escape from the PGT128 family of anti-HIV broadly neutralizing antibodiesV1 loop glycan addition as a potential escape strategy. V1 loop glycans were removed using an Asn to Ala substitution. Single (see Additional file 1: Figure S4A), double and triple V1 loop glycan mutants were prepared for the 7AA N295 N334 variant. Neutralization was determined for a PGT128, b PGT130, c 95H 71L and d 74H 3LBack to article page