volume 66, issue 9, P5671-5676 1992
DOI: 10.1128/jvi.66.9.5671-5676.1992
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F L Cosset, C Ronfort, R M Molina, F Flamant, A Drynda, M Benchaibi, S Valsesia, V M Nigon, G Verdier

Abstract: which produces avian leukosis virus gag and pol proteins, we have constructed packaging cells with subgroups B, C, and E envelope specificities. This allows us to produce helper-free avian leukosis virus particles carrying the lacZ reporter gene and the A, B, C, or E subgroup specificities. Titers of the recombinant lacZ virus are shown to be dependent upon the type of the env subgroup and the target avian cell.