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Infect Immun. 1991 March; 59(3): 800-807

Purification and characterization of major antigens from a Mycobacterium bovis culture filtrate.

T Fifis, C Costopoulos, A J Radford, A Bacic and P R Wood

Commonwealth Scientific and Industrial Research Organisation, Division of Animal Health, Parkville, Victoria Australia.

ABSTRACT

Ten major antigens from Mycobacterium bovis culture filtrate of 39, 32, 30, 25, 24, 22 (a and b forms), 19, 15, and 12 kDa have been purified and characterized by classical physicochemical methods. With monoclonal antibodies and/or N-terminal amino acid sequencing data, it was found that the antigens of 32, 30, 24, 22 (a), 19, and 12 kDa are related to M. bovis or M. tuberculosis antigens P32, MPB59, MPB64, MPB70, 19 kDa, and 12 kDa, respectively. The 39-, 25-, 22 (b)-, and 19-kDa antigens showed concanavalin A-binding properties and were positive in a glycan detection test, suggesting that they are glycoproteins. The 25- and 22 (b)-kDa proteins were found to be glycosylated forms of MPB70.


Infect Immun. 1991 March; 59(3): 800-807




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