ArticleJournal of bacteriology2006
Activity of Rhodobacter sphaeroides RpoHII, a second member of the heat shock sigma factor family.
Article in Journal of bacteriology, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
30 citing papers in PubMed, 40 citations in OpenAlex.
- Function of the RNA-targeting class 2 type VI CRISPR Cas system ofFrontiers in microbiology · 2024Article
- A Small RNA, UdsC, Interacts with the RInternational journal of molecular sciences · 2022Article
- The essential Rhodobacter sphaeroides CenKR two-component system regulates cell division and envelope biosynthesis.PLoS genetics · 2022Article
- Regulation of Reactive Oxygen Species Promotes Growth and Carotenoid Production Under Autotrophic Conditions inFrontiers in microbiology · 2022Article
- Promoter Architecture Differences amongmSystems · 2021Article
- The CtrA Regulon of Rhodobacter sphaeroides Favors Adaptation to a Particular Lifestyle.Journal of bacteriology · 2020Article
- Shedding light on a Group IV (ECF11) alternative σ factor.Molecular microbiology · 2019Review
- Catalase Expression in Azospirillum brasilense Sp7 Is Regulated by a Network Consisting of OxyR and Two RpoH Paralogs and Including an RpoE1→RpoH5 Regulatory Cascade.Applied and environmental microbiology · 2018Article
- Expression of Two RpoH Sigma Factors in Sinorhizobium meliloti upon Heat Shock.Microbes and environments · 2017Article
- An RpoHI-Dependent Response Promotes Outgrowth after Extended Stationary Phase in the Alphaproteobacterium Rhodobacter sphaeroides.Journal of bacteriology · 2017Article
- Evolution of a Sigma Factor: An All-In-One of Gene Duplication, Horizontal Gene Transfer, Purifying Selection, and Promoter Differentiation.Frontiers in microbiology · 2016Article
- The sRNA SorY confers resistance during photooxidative stress by affecting a metabolite transporter in Rhodobacter sphaeroides.RNA biology · 2015Article
- RNA-Seq analysis of the multipartite genome of Rhizobium etli CE3 shows different replicon contributions under heat and saline shock.BMC genomics · 2014Article
- Identification of a predicted partner-switching system that affects production of the gene transfer agent RcGTA and stationary phase viability in Rhodobacter capsulatus.BMC microbiology · 2014Article
- Transcription of Ehrlichia chaffeensis genes is accomplished by RNA polymerase holoenzyme containing either sigma 32 or sigma 70.PloS one · 2013Article
- Convergence of the transcriptional responses to heat shock and singlet oxygen stresses.PLoS genetics · 2012Article
- Dual RpoH sigma factors and transcriptional plasticity in a symbiotic bacterium.Journal of bacteriology · 2012Article
- Signal correlations in ecological niches can shape the organization and evolution of bacterial gene regulatory networks.Advances in microbial physiology · 2012Review
- The role of sigma factor RpoH1 in the pH stress response of Sinorhizobium meliloti.BMC microbiology · 2010Article
- Loss of the response regulator CtrA causes pleiotropic effects on gene expression but does not affect growth phase regulation in Rhodobacter capsulatus.Journal of bacteriology · 2010Article
Corrections and comments
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Authors and funding
2 authors at 1 institution in 1 country.
Funding
Abstract
We have identified a second RpoH homolog, RpoH(II), in the alpha-proteobacterium Rhodobacter sphaeroides. Primary amino acid sequence comparisons demonstrate that R. sphaeroides RpoH(II) belongs to a phylogenetically distinct group with RpoH orthologs from alpha-proteobacteria that contain two rpoH genes. Like its previously identified paralog, RpoH(I), RpoH(II) is able to complement the temperature-sensitive phenotype of an Escherichia coli sigma(32) (rpoH) mutant. In addition, we show that recombinant RpoH(I) and RpoH(II) each transcribe two E. coli sigma(32)-dependent promoters (rpoD P(HS) and dnaK P1) when reconstituted with E. coli core RNA polymerase. We observed differences, however, in the ability of each sigma factor to recognize six R. sphaeroides promoters (cycA P1, groESL(1), rpoD P(HS), dnaK P1, hslO, and ecfE), all of which resemble the E. coli sigma(32) promoter consensus. While RpoH(I) reconstituted with R. sphaeroides core RNA polymerase transcribed all six promoters, RpoH(II) produced detectable transcripts from only four promoters (cycA P1, groESL(1), hslO, and ecfE). These results, in combination with previous work demonstrating that an RpoH(I) mutant mounts a typical heat shock response, suggest that while RpoH(I) and RpoH(II) have redundant roles in response to heat, they may also have roles in response to other environmental stresses.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.