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The preparation of A purified immunogenic pertactin from B. pertussis
E M El-Kady1, H M Abu-Shady, H S Tohamy
1Department of Microbial Biotechnology, National Research Center, Cairo, Egypt.
Abstract:
Pertactin, an outer membrane protein of Bordetella pertussis, was purified to apparent homogeneity. The purified pertactin was first extracted from the B. pertussis cells (strain 165) by heating for 1 h at 60 degrees C, followed by DEAE-Sepharose and Affi-Gel Blue chromatography. The purified pertactin migrated as a single band of 69-kDa and a pl of 5.9 and retains a high immunogenicity. The rabbit anti- pertactin antisera shows high specificity in ELISA. The purified pertactin is a potential candidate as immunogen for preparation of diagnostic reagents and as a vaccine component.
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