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  • Title: Definition of purified enzyme-linked immunosorbent assay antigens from the culture filtrate protein of Mycobacterium bovis by proteomic analysis.
    Author: Cho YS, Lee SE, Ko YJ, Cho D, Lee HS, Hwang I, Nam H, Heo E, Kim JM, Jung S.
    Journal: J Immunoassay Immunochem; 2009; 30(3):291-304. PubMed ID: 19591042.
    Abstract:
    Enzyme-linked immunosorbent assay (ELISA) has been developed as the ancillary diagnosis of bovine tuberculosis at ante-mortem to overcome the disadvantages of intradermal skin test. In this study, the antigenic proteins were purified, applied to bTB ELISA, and identified through proteomic analysis. Culture filtrate protein of Mycobacterium bovis was fractionated by MonoQ column chromatography, and examined the antigenicity by immunoblotting. The antigenic 20 kDa protein was in-gel digested and identified the antigenome by LTQ mass spectrometer and peptide match fingerprinting, which were MPB64, MPB70, MPB83, Fas, Smc, Nrp, RpoC, Transposase, LeuA, and MtbE. The 20 kDa protein exhibited the highest antigenicity to bTB positive cattle in ELISA and would be useful for bTB serological diagnosis.
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