Excision and Integration of Cassettes by an Integron Integrase ofNitrosomonas europaea

Abstract
We found in the environmental strainNitrosomonas europaeaa chromosomal integron-like structure with an integrase gene,intINeu. We have tested the capacity of the IntINeu integrase to excise and integrate several resistance gene cassettes. The results allow us to consider IntINeu a new functional integron integrase.