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Journal of Bacteriology, December 2002, p. 6721-6724, Vol. 184, No. 23
0021-9193/02/$04.00+0     DOI: 10.1128/JB.184.23.6721-6724.2002
Copyright © 2002, American Society for Microbiology. All Rights Reserved.

Up-Regulated Expression of the cbbI and cbbII Operons during Photoheterotrophic Growth of a Ribulose 1,5-Bisphosphate Carboxylase-Oxygenase Deletion Mutant of Rhodobacter sphaeroides

Stephanie A. Smith and F. Robert Tabita*

Department of Microbiology and Plant Molecular Biology and Biotechnology Program, The Ohio State University, Columbus, Ohio 43210-1292

Received 2 May 2002/ Accepted 28 August 2002

In a Rhodobacter sphaeroides ribulose 1,5-bisphosphate carboxylase-oxygenase deletion strain that requires an exogenous electron donor for photoheterotrophic growth, transcription of the genes of the Calvin-Benson-Bassham (CBB) cycle was increased. This finding pointed to a potential physiological effector that enhances the capability of the positive transcriptional activator CbbR to mediate cbb transcription. This effector is most likely ribulose 1,5-bisphosphate or a metabolite derived from this CBB pathway intermediate.

* Corresponding author. Mailing address: Department of Microbiology, The Ohio State University, 484 West 12th Ave., Columbus, OH 43210-1292. Phone: (614) 292-4297. Fax: (614) 292-6337. E-mail: tabita.1{at}osu.edu.

Journal of Bacteriology, December 2002, p. 6721-6724, Vol. 184, No. 23
0021-9193/02/$04.00+0     DOI: 10.1128/JB.184.23.6721-6724.2002
Copyright © 2002, American Society for Microbiology. All Rights Reserved.



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  • Dubbs, P., Dubbs, J. M., Tabita, F. R. (2004). Effector-Mediated Interaction of CbbRI and CbbRII Regulators with Target Sequences in Rhodobacter capsulatus. J. Bacteriol. 186: 8026-8035 [Abstract] [Full Text]  


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