J Virol Methods. 1991 Oct;34(3):255-71.

Production of monoclonal antibodies reactive with a denatured form of the Friend murine leukemia virus gp70 envelope protein: use in a focal infectivity assay, immunohistochemical studies, electron microscopy and western blotting.

Robertson MN, Miyazawa M, Mori S, Caughey B, Evans LH, Hayes SF, Chesebro B.

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Laboratory of Persistent Viral Diseases, Rocky Mountain Laboratories, NIAID, NIH, Hamilton, Montana 59840.

Abstract

Four monoclonal antibodies were selected for their ability to recognize the envelope protein of Friend murine leukemia virus (F-MuLV) in methanol-fixed tissue culture cells. Each of these monoclonal antibodies was found to react only with F-MuLV. By using recombinant retroviruses, it was determined that each of the monoclonal antibodies recognized the C-terminal one-third of the F-MuLV gp70 envelope protein. The monoclonal antibodies were effective in radioimmunoprecipitation of F-MuLV proteins, and one of the antibodies, 720, was also effective in Western blotting. The ability of antibody 720 to react with F-MuLV in methanol-fixed cells facilitated the use of a sensitive immunoperoxidase method with a focal virus infectivity assay. In immunohistochemical studies using light microscopy, antibody 720 could specifically label F-MuLV-infected cells in acetone-fixed tissue sections from F-MuLV-infected animals. Finally, in immuno-gold labelling studies using electron microscopy, antibody 720 could be used to distinguish F-MuLV from amphotropic MuLV.

PMID:: 1744218; [PubMed - indexed for MEDLINE]

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Production of monoclonal antibodies reactive with a denatured form of the Friend murine leukemia virus gp70 envelope protein: use in a focal infectivity assay, immunohistochemical studies, electron microscopy and western blotting.

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