FIG. 2.
MAbs 205-42-15, 205-43-1, and 205-46-9 do not interfere with neutralization of HIV-1 JR-FL by MAb b12. MAbs 205-42-15, 205-43-1, and 205-46-9 at the concentration indicated, with or without (⧫) MAb b12 at 0.01 (○), 0.1 (▵), or 1 (□) μg/ml, were mixed with HIV-1 JR-FL for 1 h prior to addition to PBMC (a, b, and c) or mixed with the HIV-1JR-FL Env-pseudotype virus for 1 h prior to addition to HeLa-CD4-CCR5 cells (d, e, and f). The outcome of infection was determined, and the percentage neutralization by the input antibodies was determined. The data points overlapping the y axis were derived in the absence of MAb (i.e., at 0 μg/ml).