ArticleProceedings of the National Academy of Sciences of the United States of America2009
ChlH, the H subunit of the Mg-chelatase, is an anti-sigma factor for SigE in Synechocystis sp. PCC 6803.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.
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39 citing papers in PubMed, 79 citations in OpenAlex.
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- Inorganic carbon levels regulate growth via SigC signaling cascade in cyanobacteria.The New phytologist · 2025Article
- A cyanobacterial sigma factor F controls biofilm-promoting genes through intra- and intercellular pathways.Biofilm · 2024Article
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- The protein kinase FvRIPK1 regulates plant morphogenesis by ABA signaling using seed genetic transformation in strawberry.Frontiers in plant science · 2022Article
- Biochemical elucidation of citrate accumulation in Synechocystis sp. PCC 6803 via kinetic analysis of aconitase.Scientific reports · 2021Article
- Absence of KpsM (Slr0977) Impairs the Secretion of Extracellular Polymeric Substances (EPS) and Impacts Carbon Fluxes inmSphere · 2021Article
- Origin and adaptation to high altitude of Tibetan semi-wild wheat.Nature communications · 2020Article
- Comparative transcriptome analysis reveals the molecular regulation underlying the adaptive mechanism of cherry (Cerasus pseudocerasus Lindl.) to shelter covering.BMC plant biology · 2020Article
- Citrate synthase from Synechocystis is a distinct class of bacterial citrate synthase.Scientific reports · 2019Article
- Inactivation of group 2 σ factors upregulates production of transcription and translation machineries in the cyanobacterium Synechocystis sp. PCC 6803.Scientific reports · 2018Article
- Purification and Characterisation of Malate Dehydrogenase FromFrontiers in plant science · 2018Article
- Article
- 6S RNA plays a role in recovery from nitrogen depletion in Synechocystis sp. PCC 6803.BMC microbiology · 2017Article
- Role of Type 2 NAD(P)H Dehydrogenase NdbC in Redox Regulation of Carbon Allocation inPlant physiology · 2017Article
- Allosteric Inhibition of Phosphoenolpyruvate Carboxylases is Determined by a Single Amino Acid Residue in Cyanobacteria.Scientific reports · 2017Article
- Tetrapyrrole Signaling in Plants.Frontiers in plant science · 2016Review
- Mutation of Gly195 of the ChlH Subunit of Mg-chelatase Reduces Chlorophyll and Further Disrupts PS II Assembly in a Ycf48-Deficient Strain of Synechocystis sp. PCC 6803.Frontiers in plant science · 2016Article
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9 authors at 4 institutions in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
Although regulation of sigma factors has been intensively investigated, anti-sigma factors have not been identified in oxygenic photosynthetic organisms. A previous study suggested that the sigma factor, SigE, of the cyanobacterium Synechocystis sp. PCC 6803, a positive regulator of sugar catabolism, is posttranslationally activated by light-to-dark transition. In the present study, we found that the H subunit of Mg-chelatase ChlH interacts with sigma factor SigE by yeast two-hybrid screening, and immunoprecipitation analysis revealed that ChlH associates with SigE in a light-dependent manner in vivo. We also found that Mg(2+) promotes the interaction of SigE and ChlH and determines their localization in vitro. In vitro transcription analysis demonstrated that ChlH inhibits the transcription activity of SigE. Based on these results, we propose a model in which ChlH functions as an anti-sigma factor, transducing light signals to SigE in a process mediated by Mg(2+).
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