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  • Title: Murine monoclonal antibodies which recognize active sites of Escherichia coli NusA protein and epitope mapping by gene fusion.
    Author: Nakamura Y, Tsugawa A, Fornwald LW, Showalter SD, Court DL.
    Journal: Gene; 1989 Aug 01; 80(1):13-9. PubMed ID: 2477308.
    Abstract:
    Seven hybridomas producing murine monoclonal antibodies reactive against NusA protein of Escherichia coli were prepared. Antigenic determinants of these monoclonal antibodies have been mapped by immunoblotting analyses using fusion proteins containing parts of NusA. The epitope of the N14 antibody maps in a hydrophobic amino acid (aa) cluster and consists of at least Ala-181 and Ser-183 residues. nusA1 and nusA11 mutations, which cause aa changes of these residues, abolish the antigenic reactivity to the N14 antibody. These antibodies react with intact NusA protein, indicating that the epitopes are exposed on the surface of NusA. Most of these epitopes cluster around the nusA1 and nusA11 mutation loci.
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