Integrons and gene cassettes: hotspots of diversity in bacterial genomes.

Abstract excerpt

Integrons are genetic units found in many bacterial species that are defined by their ability to capture small mobile elements called gene cassettes. Cassettes usually contain only one gene, potentially any gene, and an attC recombination site, and thousands of cassettes have been sequenced. A specialized IntI site-specific recombinase encoded by the integron recognizes attC and incorporates cassettes into an...

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