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Characterization of the genes encoding a receptor-like histidine kinase and a cognate response regulator from a biphenyl/polychlorobiphenyl-degrading bacterium, Rhodococcus sp. strain M5.

By D Labbé, J Garnon and P C Lau


We report the cloning, sequence, and expression of the bpdS and bpdT genes from Rhodococcus sp. strain M5, which are believed to encode the first two-component signal transduction system in the genus Rhodococcus, which potentially regulates biphenyl/polychlorobiphenyl metabolism in M5. BpdT has a typical responses regulator sequence (209 amino acids; 23 kDa), whereas BpdS, the predicted histidine kinase component, is an unusually large transmembrane protein (1,576 amino acids; 170 kDa) that contains ATP-binding and leucine-rich repeat motifs and some conserved residues of protein kinases. Expression of bpdST, like that of the bpdC1C2BADE degradative operon, is inducible by biphenyl

Topics: Research Article
Year: 1997
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Provided by: PubMed Central
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