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Characterization of integrated hepatitis B viral DNA cloned from a human hepatoma and the hepatoma-derived cell line PLC/PRF/5

Anne Dejean 1 Christian Brechot 1 Pierre Tiollais 1 Simon Wain-Hobson 1
1 Recombinaison et expression génétique
Institut Pasteur [Paris], INSERM - Institut National de la Santé et de la Recherche Médicale : U 163, CNRS - Centre National de la Recherche Scientifique : URA 271
Abstract : Recombinant phage clones carrying integrated hepatitis B virus (HBV) DNA sequences have been isolated from two phage libraries made from human DNA of a hepatoma and a hepatoma-derived cell line. One clone from each library has been characterized both by restriction mapping and by electron microscopy. In one clone there is at least one complete and uninterrupted HBV genome, and in the other the HBV sequences are composed of two major subgenomic fragments inverted with respect to each other. The host-virus junctions are localized within the positions 1,700-2,600 base pairs on the physical map of the free viral genome. The pre-S/S (surface antigen gene) region is conserved between the two clones. The two clones do not have common cellular sequences nor do they contain cellular homologues to six retroviral oncogenes. For one clone, the hepatitis B surface antigen gene was found to be functional when introduced into mouse thymidine kinase-negative cells by transfection.
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Submitted on : Thursday, May 27, 2021 - 9:28:05 AM
Last modification on : Thursday, July 22, 2021 - 1:29:55 PM

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Anne Dejean, Christian Brechot, Pierre Tiollais, Simon Wain-Hobson. Characterization of integrated hepatitis B viral DNA cloned from a human hepatoma and the hepatoma-derived cell line PLC/PRF/5. Proceedings of the National Academy of Sciences of the United States of America , National Academy of Sciences, 1983, 80 (9), pp.2505-2509. ⟨10.1073/pnas.80.9.2505⟩. ⟨pasteur-03238356⟩

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