Figure 6
Mutant tRNALys3 encapsidation assay. (A) Detection of mutant tRNALys3 in HIV-1 virions that were generated through co-transfection of plasmids encoding a HIV-1-based vector system and a retroviral plasmid carrying the mutant tRNALys3 gene. +, with packaging plasmid; -, without packaging plasmid. (B) Titers of vectors generated through co-transfections as in (A). Titers were determined on CEM-SS cells.