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    Crc Is Involved in Catabolite Repression Control of the bkd Operons of Pseudomonas putida and Pseudomonas aeruginosa

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    Author
    Hester, Kathryn L.; Lehman, Jodi; Najar, Fares; Song, Lin; Roe, Bruce A.; MacGregor, Carolyn H.; Hager, Paul W.; Phibbs, Paul V. Jr; Sokatch, John R.
    Abstract
    Crc (catabolite repression control) protein of Pseudomonas aeruginosa has shown to be involved in carbon regulation of several pathways. In this study, the role of Crc in catabolite repression control has been studied in Pseudomonas putida. The bkd operons of P. putida and P. aeruginosa encode the inducible multienzyme complex branched-chain keto acid dehydrogenase, which is regulated in both species by catabolite repression. We report here that this effect is mediated in both species by Crc. A 13-kb cloned DNA fragment containing the P. putida crc gene region was sequenced. Crc regulates the expression of branched-chain keto acid dehydrogenase, glucose-6-phosphate dehydrogenase, and amidase in both species but not urocanase, although the carbon sources responsible for catabolite repression in the two species differ. Transposon mutants affected in their expression of BkdR, the transcriptional activator of the bkd operon, were isolated and identified as crc and vacB (rnr) mutants. These mutants suggested that catabolite repression in pseudomonads might, in part, involve control of BkdR levels. Originally published Journal of Bacteriology, Vol. 182, No. 4, Feb 2000
    URI
    http://hdl.handle.net/10342/3299
    Subject
     Catabolite repression control; Carbon regulation; Pseudomonads 
    Date
    2000-02
    Citation:
    APA:
    Hester, Kathryn L., & Lehman, Jodi, & Najar, Fares, & Song, Lin, & Roe, Bruce A., & MacGregor, Carolyn H., & Hager, Paul W., & Phibbs, Paul V. Jr, & Sokatch, John R.. (February 2000). Crc Is Involved in Catabolite Repression Control of the bkd Operons of Pseudomonas putida and Pseudomonas aeruginosa. Journal of Bacteriology, (182:4), p.1144-1149. Retrieved from http://hdl.handle.net/10342/3299

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    MLA:
    Hester, Kathryn L., and Lehman, Jodi, and Najar, Fares, and Song, Lin, and Roe, Bruce A., and MacGregor, Carolyn H., and Hager, Paul W., and Phibbs, Paul V. Jr, and Sokatch, John R.. "Crc Is Involved in Catabolite Repression Control of the bkd Operons of Pseudomonas putida and Pseudomonas aeruginosa". Journal of Bacteriology. 182:4. (1144-1149.), February 2000. March 03, 2021. http://hdl.handle.net/10342/3299.
    Chicago:
    Hester, Kathryn L. and Lehman, Jodi and Najar, Fares and Song, Lin and Roe, Bruce A. and MacGregor, Carolyn H. and Hager, Paul W. and Phibbs, Paul V. Jr and Sokatch, John R., "Crc Is Involved in Catabolite Repression Control of the bkd Operons of Pseudomonas putida and Pseudomonas aeruginosa," Journal of Bacteriology 182, no. 4 (February 2000), http://hdl.handle.net/10342/3299 (accessed March 03, 2021).
    AMA:
    Hester, Kathryn L., Lehman, Jodi, Najar, Fares, Song, Lin, Roe, Bruce A., MacGregor, Carolyn H., Hager, Paul W., Phibbs, Paul V. Jr, Sokatch, John R.. Crc Is Involved in Catabolite Repression Control of the bkd Operons of Pseudomonas putida and Pseudomonas aeruginosa. Journal of Bacteriology. February 2000; 182(4) 1144-1149. http://hdl.handle.net/10342/3299. Accessed March 03, 2021.
    Collections
    • Microbiology and Immunology
    Publisher
    East Carolina University

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