... cells and blocked HIV- 1 fusion by 77.2%(panel G). However, incubation of sCD4 together withInhibition of X4 and R5-tropic HIV- 1Figure 2Inhibition of X4 and R5-tropic HIV- 1. GHOST X4/R5 and GFP ... participated in the design of experi-ments.MC, EEP, XL, and DYWL participated in the interpretation of the results.MC and EEP prepared the manuscript.EEP, XL, KD, JJM, JCV, CT, and YL performed the experi-ments.AcknowledgementsWe ... [19], with 10 µg of HIV- 1 cloneDNA and 15 µg of VSV-G envelope expression plasmidDNA, a ratio of DNAs found to yield the highest HIV- 1infectious titers in our hands. For native HIV- 1 produc-tion,...