Summary
Nef protein, encoded by the regulatorynef gene of human immunodeficiency virus type 1 (HIV-1), was expressed in the B-cell line Raji. The cells were stably transfected with plasmids containing thenef transcriptional cassette. They expressed Nef with an Mr of 27,000; the yield could be augmented by incubation with the tumor promoter 12-O-tetradecanoylphorbol-13-acetate. The intracellular localization of Nef was analyzed applying immunofluorescence microscopy using a confocal laser scanning microscope. The antigen was stained with a monoclonal antibody directed against the N-terminal part of Nef. The experiments revealed that in non-dividing cells Nef is present both in the cytoplasm and the nucleus while in dividing cells the viral protein is present in the cytoplasm and at the nuclear membrane.
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Kienzle, N., Bachmann, M., Müller, W.E.G. et al. Expression and cellular localization of the Nef protein from human immunodeficiency virus-1 in stably transfected B-cells. Archives of Virology 124, 123–132 (1992). https://doi.org/10.1007/BF01314630
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DOI: https://doi.org/10.1007/BF01314630