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  • Title: Molecular cloning and expression of Chlamydia trachomatis major outer membrane protein antigens in Escherichia coli.
    Author: Stephens RS, Kuo CC, Newport G, Agabian N.
    Journal: Infect Immun; 1985 Mar; 47(3):713-8. PubMed ID: 3882565.
    Abstract:
    DNA obtained from Chlamydia trachomatis (serovar L2) was partially digested with DNase I and inserted into the beta-galactosidase gene of bacteriophage lambda gt11. Seven recombinants were selected that produced immunoreactive fusion proteins which were detected with anti-C. trachomatis rabbit serum. One recombinant, designated lambda gt11/L2/33, reacted with various monoclonal antibodies that recognize species-, subspecies-, and type-specific determinants on the chlamydial major outer membrane protein (MOMP). Immunoblot analysis of a lambda gt11/L2/33 lysogen revealed a fusion protein that expressed a approximately 15,000-dalton carboxyl-terminal peptide of the chlamydial MOMP. This moiety of the MOMP possesses epitopes responsible for each of the unique reactivities demonstrated by anti-MOMP monoclonal antibodies. The lambda gt11/L2/33 recombinant contained a 1.1-kilobase DNA insert which hybridized to DNA isolated from each of the 15 C. trachomatis serovars.
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