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FEMS Microbiol Lett. 1996 Jun 1;139(2-3):109-15.

Immunological crossreactivity to the catabolite control protein CcpA Bacillus megaterium is found in many gram-positive bacteria.

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Lehrstuhl für Mikrobiologie, Friedrich-Alexander-Universität Erlagen-Nürnberg, Germany.


The catabolite control protein CcpA from Bacillus megaterium was overproduced as a fusion protein to a 6xhis affinity tag and purified to homogeneity. Polyclonal antibodies of high affinity and specificity were raised against the purified protein. The serum did not crossreact with purified Lac repressor despite the fact that CcpA and LacI belong to the same protein family. Using this antiserum we identified proteins that share antigenic determinants with CcpA in many Gram-positive bacteria, including bacilli, staphylococci, lactic acid bacteria, and some actinomycetes.

[Indexed for MEDLINE]

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