Figure 4.

Neutralization of HIV‐1 by T20 and variants. (a) JRCSF or (b) JRCSF‐GIA pseudotyped viruses were preincubated with various concentrations of the indicated inhibitors (x‐axis) prior to measuring infectivity, and percent inhibition (y‐axis) was normalized to infectivity in the absence of inhibitor. Complete inhibition curves for the T20 variants and controls are presented in Figure S7. IC₅₀ values are reported in Table 1.