Figure 3

Limiting dilution RT PCR of Virion associated GFP RNA. For each viral vector, four PCR s were performed containing a target cDNA at neat, 1/10, 1/20 and 1/40 dilution. A: Lanes 1–4, HIV-1 Gag-pol + HIV-1 Vector, Lanes 5–8, HIV-1 Gag-pol + SIV vector, Lanes 9–12, HIV-1 Gag-pol + HIV-2 vector, Lanes 13–16, SIV Gag-pol + SIV vector. B: Lanes 1–4, SIV Gag-pol + HIV-2 vector, Lanes 5–8, HIV-2 Gag-pol + HIV-2 vector, Lanes 9–12, HIV-2 Gag-pol + HIV-1 vector, Lanes 13–16, HIV-2 Gag-pol + SIV vector.