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Transduction of Raji cells with plasmids containing various promoters. Raji lymphoma cells were modified with pLVX ZsGreen1, pLVTHM, pGIPZ and HIV-SFFV-RFP. The percentage of fluorescent (GFP- or RFP-positive) cells was determined using flow cytometry. GFP, green fluorescent protein; RFP, red fluorescent protein; HIV, human immunodeficiency virus; SFFV, spleen focus-forming virus.
