Plant cell microcompartments: a redox-signaling perspective

Autor(en): Zachgo, Sabine 
Hanke, Guy T. 
Scheibe, Renate 
Stichwörter: ARABIDOPSIS-THALIANA; Biochemistry & Molecular Biology; GLYCERALDEHYDE-3-PHOSPHATE DEHYDROGENASE; HYDROGEN-PEROXIDE; macromolecular crowding; MODULATED CHLOROPLAST ENZYMES; NITRIC-OXIDE; PHOTOSYNTHETIC ACCLIMATION; PHOTOSYSTEM STOICHIOMETRY; protein-protein interactions; redox signaling; regulation; S-NITROSYLATION; signal integration; STATE TRANSITIONS; STRESS RESPONSES; thiol groups
Erscheinungsdatum: 2013
Herausgeber: WALTER DE GRUYTER GMBH
Journal: BIOLOGICAL CHEMISTRY
Volumen: 394
Ausgabe: 2
Startseite: 203
Seitenende: 216
Zusammenfassung: 
This review describes how transient protein-protein interactions can contribute to direct information flow between subsequent steps of metabolic and signaling pathways, focusing on the redox perspective. Posttranslational modifications are often the basis for the dynamic nature of such macromolecular aggregates, named microcompartments. The high cellular protein concentration promotes these interactions that are prone to disappear upon the extraction of proteins from cells. Changes of signaling molecules, such as metabolites, effectors or phytohormones, or the redox state in the cellular microenvironment, can modulate them. The signaling network can, therefore, respond in a very flexible and appropriate manner, such that metabolism, stress responses, and developmental steps are integrated by multiple and changing contacts between functional modules. This allows plants to survive and persist by continuously and flexibly adapting to a challenging or even adverse environment.
ISSN: 14316730
DOI: 10.1515/hsz-2012-0284

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