ArticleJournal of experimental botany2020
Thioredoxin targets are regulated in heterocysts of cyanobacterium Anabaena sp. PCC 7120 in a light-independent manner.
Article in Journal of experimental botany, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 11 citations in OpenAlex.
- Systematic determination of disulfide bond reduction potentials reveals a nonequilibrium redox hierarchy in cyanobacteria.Proceedings of the National Academy of Sciences of the United States of America · 2026Article
- Thiol post-translational modifications modulate allosteric regulation of the OpcA-G6PDH complex through conformational gate control.Protein science : a publication of the Protein Society · 2026Article
- Thioredoxin A regulates protein synthesis to maintain carbon and nitrogen partitioning in cyanobacteria.Plant physiology · 2024Article
- L-Lactate treatment by photosynthetic cyanobacteria expressing heterogeneous L-lactate dehydrogenase.Scientific reports · 2023Article
- Article
- Thiol redox switches regulate the oligomeric state of cyanobacterial Rre1, RpaA and RpaB response regulators.FEBS letters · 2022Article
- Exploring the Diversity of the Thioredoxin Systems in Cyanobacteria.Antioxidants (Basel, Switzerland) · 2022Review
- Depletion of m-type thioredoxin impairs photosynthesis, carbon fixation, and oxidative stress in cyanobacteria.Plant physiology · 2021Article
- Thioredoxin Dependent Changes in the Redox States of FurA fromAntioxidants (Basel, Switzerland) · 2021Article
- Real-time monitoring of the in vivo redox state transition using the ratiometric redox state sensor protein FROG/B.Proceedings of the National Academy of Sciences of the United States of America · 2020Article
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4 authors at 1 institution in 1 country.
Funding
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Abstract
In the nitrogen-fixing cyanobacterium Anabaena sp. PCC 7120, glucose 6-phosphate dehydrogenase (G6PDH) plays an important role in producing the power for reducing nitrogenase under light conditions. Our previous study showed that thioredoxin suppresses G6PDH by reducing its activator protein OpcA, implying that G6PDH is inactivated under light conditions because thioredoxins are reduced by the photosynthetic electron transport system in cyanobacteria. To address how Anabaena sp. PCC 7120 maintains G6PDH activity even under light conditions when nitrogen fixation occurs, we investigated the redox regulation system in vegetative cells and specific nitrogen-fixing cells named heterocysts, individually. We found that thioredoxin target proteins were more oxidized in heterocysts than in vegetative cells under light conditions. Alterations in the redox regulation mechanism of heterocysts may affect the redox states of thioredoxin target proteins, including OpcA, so that G6PDH is activated in heterocysts even under light conditions.
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