ArticleNature communications2019
Evidence that cyanobacterial Sll1217 functions analogously to PGRL1 in enhancing PGR5-dependent cyclic electron flow.
Article in Nature communications, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.
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Who cites it
28 citing papers in PubMed, 51 citations in OpenAlex.
- Rethinking ATP balance in photosynthesis.Nature plants · 2026Article
- Photosystem I-independent oxygenic photosynthesis in cyanobacteria.Nature communications · 2026Article
- Electron transport reactions of cyanobacterial photosynthesis and state-of-the-art in vivo measurement techniques.Plant physiology · 2026Review
- Improving tolerance to fluctuating light through adaptive laboratory evolution in the cyanobacterium Synechocystis.Nature communications · 2026Article
- Repeated loss of plastid NDH during evolution of land plants.Annals of botany · 2026Review
- Photoinhibition and protection of photosystem I.Plant & cell physiology · 2025Review
- On the non-oxygenic origins of thylakoids.Communications biology · 2025Review
- Article
- Synthetic Biology Strategies and Tools to Modulate Photosynthesis in Microbes.International journal of molecular sciences · 2025Review
- A cyanobacteria-derived intermolecular salt bridge stabilizes photosynthetic NDH-1 and prevents oxidative stress.Communications biology · 2025Article
- A pgr5 suppressor screen uncovers two distinct suppression mechanisms and links cytochrome b6f complex stability to PGR5.The Plant cell · 2024Article
- CGL160-mediated recruitment of the coupling factor CF1 is required for efficient thylakoid ATP synthase assembly, photosynthesis, and chloroplast development in Arabidopsis.The Plant cell · 2023Article
- Transcriptomic and metabolic signatures of diatom plasticity to light fluctuations.Plant physiology · 2022Article
- Commonalities and specialties in photosynthetic functions of PROTON GRADIENT REGULATION5 variants in Arabidopsis.Plant physiology · 2022Article
- Cryo-EM structures of the Synechocystis sp. PCC 6803 cytochrome b6f complex with and without the regulatory PetP subunit.The Biochemical journal · 2022Article
- Dissection of respiratory and cyclic electron transport in Synechocystis sp. PCC 6803.Journal of plant research · 2022Article
- Development of a Biotechnology Platform for the Fast-Growing CyanobacteriumBiomolecules · 2022Article
- Cyclic Electron Flow-Coupled Proton Pumping inMicroorganisms · 2022Article
- Current Knowledge on Mechanisms Preventing Photosynthesis Redox Imbalance in Plants.Antioxidants (Basel, Switzerland) · 2021Review
- Depletion of m-type thioredoxin impairs photosynthesis, carbon fixation, and oxidative stress in cyanobacteria.Plant physiology · 2021Article
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Authors and funding
2 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In plants and cyanobacteria, the PGR5 protein contributes to cyclic electron flow around photosystem I. In plants, PGR5 interacts with PGRL1 during cyclic electron flow, but cyanobacteria appear to lack PGRL1 proteins. We have heterologously expressed the PGR5 and PGRL1 proteins from the plant Arabidopsis in various genetic backgrounds in the cyanobacterium Synechocystis. Our results show that plant PGR5 suffices to re-establish cyanobacterial cyclic electron flow (CEF), albeit less efficiently than the cyanobacterial PGR5 or the plant PGR5 and PGRL1 proteins together. A mutation that inactivates Arabidopsis PGR5 destabilises the protein in Synechocystis. Furthermore, the Synechocystis protein Sll1217, which exhibits weak sequence similarity with PGRL1, physically interacts with both plant and cyanobacterial PGR5 proteins, and stimulates CEF in Synechocystis. Therefore, Sll1217 partially acts as a PGRL1 analogue, the mode of action of PGR5 and PGRL1/Sll1217 proteins is similar in cyanobacteria and plants, and PGRL1 could have evolved from a cyanobacterial ancestor.
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