As many as 50.0 and 23.0 integration events in average per cell were obtained following infection of WT HeLa P4 and LEDGF/p75-knockdown cells respectively by the ΔRev HIV-1 at a MOI of 10.0, in the presence of 100 μM INS (Fig. 3B and Table 3). Here, PSIP1 is linked to infection.