CPZ and infection: Addition of CPZ and TFP to cells treated with Abl kinase inhibitors and infected with HIVYU2 or HIVHXB2 resulted in an 8 fold increase in infection compared to inhibitor treated cells infected in the absence of lipid analogs (Figure 4A), The exogenous cone shaped lipid OLA, which induces negative curvature of the membrane resulting in lipid mixing, had no affect on infection (Figure 4A).