ArticleThe Plant cell2010
The Arabidopsis thylakoid protein PAM68 is required for efficient D1 biogenesis and photosystem II assembly.
Article in The Plant cell, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 82 papers.
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82 citing papers in PubMed, 145 citations in OpenAlex.
- Improving tolerance to fluctuating light through adaptive laboratory evolution in the cyanobacterium Synechocystis.Nature communications · 2026Article
- Structure, regulation and assembly of the photosynthetic electron transport chain.Nature reviews. Molecular cell biology · 2025Review
- The lumenal domain of Cyt bPhotosynthesis research · 2025Article
- Complexome profiling of the Chlamydomonas psb28 mutant reveals TEF5 as an early PSII assembly factor.The Plant cell · 2025Article
- ACT2.6: Global Gene Coexpression Network inGenes · 2025Article
- Defining the heterogeneous composition of Arabidopsis thylakoid membrane.The Plant journal : for cell and molecular biology · 2025Article
- Adaptive responses of plants to light stress: mechanisms of photoprotection and acclimation. A review.Frontiers in plant science · 2025Review
- The variegatedComputational and structural biotechnology journal · 2024Article
- Localization of proteins involved in the biogenesis and repair of the photosynthetic apparatus to thylakoid subdomains inPlant direct · 2024Article
- A pgr5 suppressor screen uncovers two distinct suppression mechanisms and links cytochrome b6f complex stability to PGR5.The Plant cell · 2024Article
- RESISTANCE TO PHYTOPHTHORA1 promotes cytochrome b559 formation during early photosystem II biogenesis in Arabidopsis.The Plant cell · 2024Article
- The biogenesis and maintenance of PSII: Recent advances and current challenges.The Plant cell · 2024Review
- The role of chloroplast SRP54 domains and its C-terminal tail region in post- and co-translational protein transport in vivo.Journal of experimental botany · 2024Article
- Strategies for adaptation to high light in plants.aBIOTECH · 2024Review
- Thylakoid protein FPB1 synergistically cooperates with PAM68 to promote CP47 biogenesis and Photosystem II assembly.Nature communications · 2024Article
- Modulation of the wheat transcriptome by TaZFP13D under well-watered and drought conditions.Plant molecular biology · 2024Article
- Eukaryote-specific assembly factor DEAP2 mediates an early step of photosystem II assembly in Arabidopsis.Plant physiology · 2023Article
- Autophagy and multivesicular body pathways cooperate to protect sulfur assimilation and chloroplast functions.Plant physiology · 2023Article
- Transcriptomic analysis of salt stress induced chlorophyll biosynthesis-related genes in photoheterotrophic Arabidopsis thaliana calli.Functional & integrative genomics · 2023Article
- Absolute quantification of cellular levels of photosynthesis-related proteins in Synechocystis sp. PCC 6803.Photosynthesis research · 2023Article
22 more citing papers are in PubMed but not listed here.
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Authors and funding
11 authors at 4 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Photosystem II (PSII) is a multiprotein complex that functions as a light-driven water:plastoquinone oxidoreductase in photosynthesis. Assembly of PSII proceeds through a number of distinct intermediate states and requires auxiliary proteins. The photosynthesis affected mutant 68 (pam68) of Arabidopsis thaliana displays drastically altered chlorophyll fluorescence and abnormally low levels of the PSII core subunits D1, D2, CP43, and CP47. We show that these phenotypes result from a specific decrease in the stability and maturation of D1. This is associated with a marked increase in the synthesis of RC (the PSII reaction center-like assembly complex) at the expense of PSII dimers and supercomplexes. PAM68 is a conserved integral membrane protein found in cyanobacterial and eukaryotic thylakoids and interacts in split-ubiquitin assays with several PSII core proteins and known PSII assembly factors. Biochemical analyses of thylakoids from Arabidopsis and Synechocystis sp PCC 6803 suggest that, during PSII assembly, PAM68 proteins associate with an early intermediate complex that might contain D1 and the assembly factor LPA1. Inactivation of cyanobacterial PAM68 destabilizes RC but does not affect larger PSII assembly complexes. Our data imply that PAM68 proteins promote early steps in PSII biogenesis in cyanobacteria and plants, but their inactivation is differently compensated for in the two classes of organisms.
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