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  • Title: Generation of a murine monoclonal antibody that detects the fos oncogene product.
    Author: Giardina SL, Evans SW, Gandino L, Robey FA, Bonvini E, Longo DL, Varesio L.
    Journal: Anal Biochem; 1987 Feb 15; 161(1):109-16. PubMed ID: 3034094.
    Abstract:
    A hybridoma producing a monoclonal antibody (MoAB) recognizing both the cellular and viral forms of fos has been generated by somatic cell hybridization techniques from spleen cells of mice immunized with a synthetic peptide corresponding to amino acids 128-152, a consensus region, of both the v-fos and c-fos oncogene products. Three proteins with molecular weights of 55,000, 44,000, and 42,000 were detected by immunoblotting. While MoAB 2G9C3 failed to immunoprecipitate fos from Finkel-Biskis-Jenkins murine osteosarcoma-virus-infected fibroblasts, both the 55,000 v-fos protein and the 39,000 cellular protein were coprecipitated using polyvalent rabbit antibodies to the same peptide. Whereas no cell surface membrane expression of fos was detected, after membrane permeabilization by a brief exposure to lysolecithin it was possible to specifically detect internal fos by immunofluorescence flow cytometry. Immunohistochemical staining of FBJ virus-infected cells revealed intense, nuclear staining.
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