FIG. 3.

Reversal of the anti-HIV effect of 4′-ethynyl D4T. dThd (10 μM), dThd (1 μM), and dCyd (10 μM) were added to the standard antiviral assay in the presence of THU (5 μM). Inhibition was determined by comparison of the results determined at an optical density of 595 nm to those determined with uninfected untreated (UIUT) control MT-2 cells. The symbols represent the means of triplicate determinations within a single experiment, and the error bars represent standard deviations. This figure is representative of several similar experiments.