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Effect of Cs titration on HIV-1 infectivity. (A) HeLa cells were infected with wild-type or A92E HIV-1-GFP in the presence of the indicated concentrations of Cs. After 48 h, the percentage of GFP-positive cells was determined by FACS. (B) Jurkat cells were used as target cells in the experiment described in panel A. Error bars represent the standard deviations obtained in at least three independent experiments. wt, wild type.
