Figure 3.

Binding activity of mAb candidates to the full length MSRV-Env-T (A) and to the surface unit MSRV-Env-SU (B). MSRV-Env-SU is a 33-kD and 293 amino acid fraction of the full-length MSRV-Env protein; serial dilutions of the MSRV-Env preparations were bound to the ApoH pre-coated microtiter wells which were then incubated with a constant amount of mAb. Results are presented as the ratio of P/N (P = signal of antibody with MSRV-Env and N = signal of antibody without MSRV-Env) showing mean values of 3 independents experiments.