Fig. 2
From: An Optimized Protocol for Packaging Pseudotyped Integrase Defective Lentivirus
A comparative study of WT and IDLV. a lentivector expressing GFP and RFP from MSCV promoter (LV605A-1) was packaged with wild-type and mutant integrase; WPRE are woodchuck hepatitis virus-derived posttranscriptional regulatory element for stabilizing the transcripts. The same amount of packaged psudoviruses was used to transduce HT1080 cells. b Images were taken at Day 3 after transduction