ArticlePhotosynthesis research2022
Photosystem II antenna modules CP43 and CP47 do not form a stable 'no reaction centre complex' in the cyanobacterium Synechocystis sp. PCC 6803.
Article in Photosynthesis research, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed, 12 citations in OpenAlex.
- Effects of the Pattern of Light and a Dark Recovery Period on Photosynthesis and Growth inMicroorganisms · 2026Article
- Functional Connectivity of Red Chlorophylls in Cyanobacterial Photosystem I Revealed by Fluence-Dependent Transient Absorption.The journal of physical chemistry. B · 2025Article
- The biogenesis and maintenance of PSII: Recent advances and current challenges.The Plant cell · 2024Review
- A Comprehensive Study of Light Quality Acclimation in Synechocystis Sp. PCC 6803.Plant & cell physiology · 2024Article
- Absolute quantification of cellular levels of photosynthesis-related proteins in Synechocystis sp. PCC 6803.Photosynthesis research · 2023Article
- Gene expression and organization of thylakoid protein complexes in the PSII-less mutant ofPlant direct · 2022Article
- Advances in the Understanding of the Lifecycle of Photosystem II.Microorganisms · 2022Review
Corrections and comments
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Authors and funding
3 authors at 2 institutions in 2 countries.
Funding
Abstract
The repair of photosystem II is a key mechanism that keeps the light reactions of oxygenic photosynthesis functional. During this process, the PSII central subunit D1 is replaced with a newly synthesized copy while the neighbouring CP43 antenna with adjacent small subunits (CP43 module) is transiently detached. When the D2 protein is also damaged, it is degraded together with D1 leaving both the CP43 module and the second PSII antenna module CP47 unassembled. In the cyanobacterium Synechocystis sp. PCC 6803, the released CP43 and CP47 modules have been recently suggested to form a so-called no reaction centre complex (NRC). However, the data supporting the presence of NRC can also be interpreted as a co-migration of CP43 and CP47 modules during electrophoresis and ultracentrifugation without forming a mutual complex. To address the existence of NRC, we analysed Synechocystis PSII mutants accumulating one or both unassembled antenna modules as well as Synechocystis wild-type cells stressed with high light. The obtained results were not compatible with the existence of a stable NRC since each unassembled module was present as a separate protein complex with a mutually similar electrophoretic mobility regardless of the presence of the second module. The non-existence of NRC was further supported by isolation of the His-tagged CP43 and CP47 modules from strains lacking either D1 or D2 and their migration patterns on native gels.
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