ArticlePlant physiology2016
Activation of the Stt7/STN7 Kinase through Dynamic Interactions with the Cytochrome b6f Complex.
Article in Plant physiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 42 papers.
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Who cites it
42 citing papers in PubMed, 81 citations in OpenAlex.
- The amino terminus of PetD is essential for cytochrome bNature plants · 2026Article
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- Molecular architecture for state transition: insights from structural biology and evolutionary trajectories.Plant & cell physiology · 2025Review
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- Chloroplast acetyltransferase GNAT2 acts as a redox-regulated switch for state transitions in tomato.Molecular horticulture · 2025Article
- Identification of STN7-associated leaf senescence networks in thylakoid membranes of Arabidopsis.iScience · 2025Article
- X-Ray Crystal and Cryo-Electron Microscopy Structure Analysis Unravels How the Unique Thylakoid Lipid Composition Is Utilized by CytochromeMembranes · 2025Article
- Cysteine residues contribute to the regulation of Arabidopsis state transition 7 kinase.FEBS letters · 2025Article
- Structure, function, and assembly of PSI in thylakoid membranes of vascular plants.The Plant cell · 2024Review
- The stromal side of the cytochrome b6f complex regulates state transitions.The Plant cell · 2024Article
- Photosynthetic control at the cytochrome b6f complex.The Plant cell · 2024Review
- Phosphate Limitation Responses in Marine Green Algae Are Linked to Reprogramming of the tRNA Epitranscriptome and Codon Usage Bias.Molecular biology and evolution · 2023Article
- Reversible protein phosphorylation in higher plants: focus on state transitions.Biophysical reviews · 2023Review
- Article
- Salinity-induced changes in plastoquinone pool redox state in halophytic Mesembryanthemum crystallinum L.Scientific reports · 2023Article
- Plastoquinone pool redox state and control of state transitions in Chlamydomonas reinhardtii in darkness and under illumination.Photosynthesis research · 2023Article
- ROS production and signalling in chloroplasts: cornerstones and evolving concepts.The Plant journal : for cell and molecular biology · 2022Review
- Chloroplast translational regulation uncovers nonessential photosynthesis genes as key players in plant cold acclimation.The Plant cell · 2022Article
- STN7 Kinase Is Essential forInternational journal of molecular sciences · 2022Article
- Current Knowledge on Mechanisms Preventing Photosynthesis Redox Imbalance in Plants.Antioxidants (Basel, Switzerland) · 2021Review
Corrections and comments
- Erratum issuedCORRECTION.2016
Authors and funding
6 authors at 1 institution in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Photosynthetic organisms have the ability to adapt to changes in light quality by readjusting the cross sections of the light-harvesting systems of photosystem II (PSII) and photosystem I (PSI). This process, called state transitions, maintains the redox poise of the photosynthetic electron transfer chain and ensures a high photosynthetic yield when light is limiting. It is mediated by the Stt7/STN7 protein kinase, which is activated through the cytochrome b6f complex upon reduction of the plastoquinone pool. Its probable major substrate, the light-harvesting complex of PSII, once phosphorylated, dissociates from PSII and docks to PSI, thereby restoring the balance of absorbed light excitation energy between the two photosystems. Although the kinase is known to be inactivated under high-light intensities, the molecular mechanisms governing its regulation remain unknown. In this study we monitored the redox state of a conserved and essential Cys pair of the Stt7/STN7 kinase and show that it forms a disulfide bridge. We could not detect any change in the redox state of these Cys during state transitions and high-light treatment. It is only after prolonged anaerobiosis that this disulfide bridge is reduced. It is likely to be mainly intramolecular, although kinase activation may involve a transient covalently linked kinase dimer with two intermolecular disulfide bonds. Using the yeast two-hybrid system, we have mapped one interaction site of the kinase on the Rieske protein of the cytochrome b6f complex.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.