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Interference with M-tropic viral replication in mutant env-transfected PM1 cells. PM1 cells were transfected with the pSVE7-puro env constructs as indicated by electroporation. The puromycin-selected transfected cells were infected with the ConB (A) or ADA-GG (B) virus, and RT activity was monitored after infection. Each experiment was performed three times, with similar results. A representative result for each is shown.
