Difference between revisions of "Part:BBa K540000"

Revision as of 22:31, 20 September 2011

rcn-csgBAEFG, over-induces adherence in response to cobalt

This parts associates the rcn promoter, whose expression increases with cobalt in the medium, with csgBAEFG, an operon that enables the production and secretion of curlis, which are adherent proteins. It contains the necessary RBS to work. With this part, strains can become adherent in response to cobalt in the medium. This part may also make bacteria adherent in response to nickel, which has however not been studied.

Characterization

Safety

This part is not toxic by itself. However, when using this part, you will probably need to handle cobalt. Cobalt is toxic in all its forms ( ionic or metallic ) by inhalation, ingestion or contact. Wear adapted personal protection equipment ( labcoat, safety glasses, safety gloves ) and dispose of it in appropriate waste containers.

Usage and Biology

This part was designed to be used in a strain with enhanced cobalt capture capacities ( like the one described in [1]). That way, the strain captures cobalt in the medium and becomes adherent, which allows it to be easily separated from the medium. Possible applications include bioremediation of radioactive cobalt in nuclear power plants, using this adherence property to build a biofilter.

[1] Bioremediation of trace cobalt from simulated spent decontamination solutions of nuclear power reactors using E. coli expressing NiCoT genes. Raghu G, Balaji V, Venkateswaran G, Rodrigue A, Maruthi Mohan P. Appl Microbiol Biotechnol. 2008 Dec.

Sequence and Features