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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Inducible gene expression in trypanosomes mediated by a prokaryotic repressor.

An inducible expression system was developed for the protozoan parasite Trypanosoma brucei. Transgenic trypanosomes expressing the tetracycline repressor of Escherichia coli exhibited inducer (tetracycline)-dependent expression of chromosomally integrated reporter genes under the control of a procyclic acidic repetitive protein (PARP) promoter bearing a tet operator. Reporter expression could be controlled over a range of four orders of magnitude in response to tetracycline concentration, a degree of regulation that exceeds those exhibited by other eukaryotic repression-based systems. The tet repressor-controlled PARP promoter should be a valuable tool for the study of trypanosome biochemistry, pathogenicity, and cell and molecular biology.[1]


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