Transcription regulators controlled by interaction with enzyme IIB components of the phosphoenolpyruvate:sugar phosphotransferase system
Autor: | Eliane Milohanic, Francine Moussan Désirée Aké, Meriem Derkaoui, Houda Bouraoui, Arthur Constant Zébré, Thanh Nguyen Cao, Josef Deutscher, Sylvie Nessler, Philippe Joyet, Magali Ventroux, Marie-Françoise Noirot-Gros |
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Přispěvatelé: | MICrobiologie de l'ALImentation au Service de la Santé (MICALIS), Institut National de la Recherche Agronomique (INRA)-AgroParisTech, Institut de biochimie et biophysique moléculaire et cellulaire (IBBMC), Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS), Agence National de la Recherche [ANR-09-BLANC-0273-01] |
Jazyk: | angličtina |
Rok vydání: | 2013 |
Předmět: |
LACTOBACILLUS-CASEI
[SDV.SA]Life Sciences [q-bio]/Agricultural sciences Operon Biophysics Repressor macromolecular substances Biology Biochemistry PTS inhibition Analytical Chemistry BACILLUS-SUBTILIS 03 medical and health sciences Bacterial Proteins Transcription (biology) CARBON CATABOLITE REPRESSION Transcriptional regulation CRYSTAL-STRUCTURE MULTIPLE PHOSPHORYLATION Phosphorylation Phosphoenolpyruvate Sugar Phosphotransferase System PTS regulation domain LISTERIA-MONOCYTOGENES Molecular Biology 030304 developmental biology 0303 health sciences Binding Sites Models Genetic 030306 microbiology Kinase Activator (genetics) Escherichia coli Proteins INDUCER EXCLUSION Gene Expression Regulation Bacterial PEP group translocation Transcription regulation Repressor Proteins CATALYZED PHOSPHORYLATION ESCHERICHIA-COLI Membrane sequestration Phosphoenolpyruvate:sugar phosphotransferase system VIRULENCE GENE REPRESSION Trans-Activators bacteria Protein Binding |
Zdroj: | Biochimica et Biophysica Acta Proteins and Proteomics Biochimica et Biophysica Acta Proteins and Proteomics, Elsevier, 2013, 1834 (7), pp.1415-1424. ⟨10.1016/j.bbapap.2013.01.004⟩ |
ISSN: | 1570-9639 |
Popis: | Numerous bacteria possess transcription activators and antiterminators composed of regulatory domains phosphorylated by components of the phosphoenolpyruvate:sugar phosphotransferase system (PTS). These domains, called PTS regulation domains (PRDs), usually contain two conserved histidines as potential phosphorylation sites. While antiterminators possess two PRDs with four phosphorylation sites, transcription activators contain two PRDs plus two regulatory domains resembling PTS components (EIIA and EIIB). The activity of these transcription regulators is controlled by up to five phosphorylations catalyzed by PTS proteins. Phosphorylation by the general PTS components El and HPr is usually essential for the activity of PRD-containing transcription regulators, whereas phosphorylation by the sugar-specific components ERA or EIIB lowers their activity. For a specific regulator, for example the Bacillus subtilis mtl operon activator MtIR, the functional phosphorylation sites can be different in other bacteria and consequently the detailed mode of regulation varies. Some of these transcription regulators are also controlled by an interaction with a sugar-specific EIIB PTS component. The EIIBs are frequently fused to the membrane-spanning EIIC and EIIB-mediated membrane sequestration is sometimes crucial for the control of a transcription regulator. This is also true for the Escherichia coli repressor Mlc, which does not contain a PRD but nevertheless interacts with the EIIB domain of the glucose-specific PTS. In addition, some PRD-containing transcription activators interact with a distinct EIIB protein located in the cytoplasm. The phosphorylation state of the EIIB components, which changes in response to the presence or absence of the corresponding carbon source, affects their interaction with transcription regulators. This article is part of a Special Issue entitled: Inhibitors of Protein Kinases (2012). (C) 2013 Elsevier B.V. All rights reserved. |
Databáze: | OpenAIRE |
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