ArticleJournal of bacteriology2009
The response regulator RpaB binds to the upstream element of photosystem I genes to work for positive regulation under low-light conditions in Synechocystis sp. Strain PCC 6803.
Article in Journal of bacteriology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.
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Who cites it
21 citing papers in PubMed.
- Improving tolerance to fluctuating light through adaptive laboratory evolution in the cyanobacterium Synechocystis.Nature communications · 2026Article
- Impact of SliP4 deletion on the high-light acclimation inmicroLife · 2026Article
- Genome analysis of dark-adapted variants identifies the phosphatase gene phsP involved in the regulation of photosynthetic and dark-heterotrophic growth in the cyanobacterium Leptolyngbya boryana.Plant & cell physiology · 2025Article
- Article
- Homologs of Circadian Clock Proteins Impact the Metabolic Switch Between Light and Dark Growth in the CyanobacteriumFrontiers in plant science · 2021Article
- Regulatory Diversity and Functional Analysis of Two-Component Systems in CyanobacteriumFrontiers in microbiology · 2020Article
- Article
- A Hard Day's Night: Cyanobacteria in Diel Cycles.Trends in microbiology · 2019Review
- Translating Divergent Environmental Stresses into a Common Proteome Response through the Histidine Kinase 33 (Hik33) in a Model Cyanobacterium.Molecular & cellular proteomics : MCP · 2017Article
- RNA-seq Profiling Reveals Novel Target Genes of LexA in the Cyanobacterium Synechocystis sp. PCC 6803.Frontiers in microbiology · 2016Article
- Integrated Analysis of Engineered Carbon Limitation in a Quadruple CO2/HCO3- Uptake Mutant of Synechocystis sp. PCC 6803.Plant physiology · 2015Article
- Regulation of the scp Genes in the Cyanobacterium Synechocystis sp. PCC 6803--What is New?Molecules (Basel, Switzerland) · 2015Article
- Modification of photosynthetic electron transport and amino acid levels by overexpression of a circadian-related histidine kinase hik8 in Synechocystis sp. PCC 6803.Frontiers in microbiology · 2015Article
- Identification of OmpR-family response regulators interacting with thioredoxin in the Cyanobacterium Synechocystis sp. PCC 6803.PloS one · 2015Article
- The small regulatory RNA SyR1/PsrR1 controls photosynthetic functions in cyanobacteria.The Plant cell · 2014Article
- Article
- Acclimation to high-light conditions in cyanobacteria: from gene expression to physiological responses.Journal of plant research · 2012Review
- Diurnal rhythms result in significant changes in the cellular protein complement in the cyanobacterium Cyanothece 51142.PloS one · 2011Article
- Functional characterization of a cyanobacterial OmpR/PhoB class transcription factor binding site controlling light color responses.Journal of bacteriology · 2010Article
- Role of multiple HLR1 sequences in the regulation of the dual promoters of the psaAB genes in Synechocystis sp. PCC 6803.Journal of bacteriology · 2010Article
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The coordinated high-light response of genes encoding subunits of photosystem I (PSI) is achieved by the AT-rich region located just upstream of the core promoter in Synechocystis sp. strain PCC 6803. The upstream element enhances the basal promoter activity under low-light conditions, whereas this positive regulation is lost immediately after the shift to high-light conditions. In this study, we focused on a high-light regulatory 1 (HLR1) sequence included in the upstream element of every PSI gene examined. A gel mobility shift assay revealed that a response regulator RpaB binds to the HLR1 sequence in PSI promoters. Base substitution in the HLR1 sequence or decrease in copy number of the rpaB gene resulted in decrease in the promoter activity of PSI genes under low-light conditions. These observations suggest that RpaB acts as a transcriptional activator for PSI genes. It is likely that RpaB binds to the HLR1 sequence under low-light conditions and works for positive regulation of PSI genes and for negative regulation of high-light-inducible genes depending on the location of the HLR1 sequence within target promoters.
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