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Curr Microbiol. 1995 Mar;30(3):149-53.

Detection of mip-like sequences and Mip-related proteins within the family Rickettsiaceae.

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Department of Microbiology-Immunology, Northwestern University, Chicago, Illinois 60611.


The Mip surface protein, a prokaryotic analog of the FK506-binding proteins, enhances the ability of Legionella pneumophila to infect macrophages and protozoa. Using mip-specific probes and low-stringency Southern hybridizations, we have detected DNA sequences homologous to mip within Coxiella burnetii and Rochalimaea quintana. Using specific anti-Mip antisera and immunoblot analysis, we also detected Mip-related proteins within these bacteria as well as within Rickettsia and Ehrlichia species. These data suggest that Mip-related proteins have broad significance for host-parasite interactions. However, they also indicate that care must be exercised when using mip probes or anti-Mip antibodies for the detection of Legionella organisms in water or clinical samples.

[Indexed for MEDLINE]

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