The aim of the study was to evaluate the application of SDS-PAGE electrophoresis and western-blotting for serological diagnostics of glanders. Six commercial Burkholderia mallei antigens, eight anti-B. mallei sera and two negative sera were used in the study. In the first part of the study electrophoretic profiles of antigens in SDS-PAGE were determined at a gradient of 4% to 20% of polyacrylamide gel. Optimal conditions of western-blotting reaction were determined. In the case of all examined antigens and anti-B. mallei sera, the presence of protein fractions in the range from 42 to 33 kDa and one band of the molecular weight of 16 kDa were demonstrated by immunoblotting reaction. Additional bands of the different molecular weight were also observed. The antigens examined did not show reaction with negative sera. In the next part of the study, a sensitivity of the western-blotting method and the CFT were compared. The western-blotting method was two - four times more sensitive than the CFT.
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