Evidence map›Paper›PMID 23806044›Full record

ArticleBiochemistry2013

Blue light regulated two-component systems: enzymatic and functional analyses of light-oxygen-voltage (LOV)-histidine kinases and downstream response regulators.

Fernando Correa, Wen-Huang Ko, Victor Ocasio, Roberto A Bogomolni, Kevin H Gardner

Abstract read
In one paragraph

Article in Biochemistry, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
2.1field-weighted citation impact, top 13% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

The trial behind it

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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

24 citing papers in PubMed, 35 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. The blue light-dependent LOV-protein LdaP ofFrontiers in microbiology · 2024
    Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Insights into histidine kinase activation mechanisms from the monomeric blue light sensor EL346.Proceedings of the National Academy of Sciences of the United States of America · 2019
    Article
  11. Review
  12. Article
  13. Review
  14. Article
  15. Functional and topological diversity of LOV domain photoreceptors.Proceedings of the National Academy of Sciences of the United States of America · 2016
    Article
  16. Article
  17. Article
  18. Article
  19. Review
  20. Full-length structure of a monomeric histidine kinase reveals basis for sensory regulation.Proceedings of the National Academy of Sciences of the United States of America · 2014
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 1 country.

Fernando CorreaDepartments of Biophysics and Biochemistry, University of Texas Southwestern Medical Center , Dallas, Texas 75390, United States.
Wen-Huang Ko
Victor Ocasio
Roberto A Bogomolni
Kevin H Gardner
The University of Texas Southwestern Medical Center · USUniversity of California, Santa Cruz · US

Funding

MOLECULAR MICROBIOLOGY TRAINING GRANTT32AI007520 · NIAID · UT SOUTHWESTERN MEDICAL CENTER · PI Julie K Pfeiffer · 1997 to 2026
$7.0M
Structural studies of PAS domain signaling mechanismsR01GM081875 · NIGMS · UT SOUTHWESTERN MEDICAL CENTER · PI GARDNER, KEVIN H · 2007 to 2010
$1.2M
NIAID NIH HHS T32 AI007520NIGMS NIH HHS R01 GM081875
6 · The paper itself

Abstract

Light is an essential environmental cue for diverse organisms. Many prokaryotic blue light photoreceptors use light, oxygen, voltage (LOV) sensory domains to control the activities of diverse output domains, including histidine kinases (HK). Upon activation, these proteins autophosphorylate a histidine residue before subsequently transferring the phosphate to an aspartate residue in the receiver domain of a cognate response regulator (RR). Such phosphorylation activates the output domain of the RR, leading to changes in gene expression, protein-protein interactions, or enzymatic activities. Here, we focus on one such light sensing LOV-HK from the marine bacterium Erythrobacter litoralis HTCC2594 (EL368), seeking to understand how kinase activity and subsequent downstream effects are regulated by light. We found that photoactivation of EL368 led to a significant enhancement in the incorporation of phosphate within the HK domain. Further enzymatic studies showed that the LOV domain affected both the LOV-HK turnover rate (kcat) and Km in a light-dependent manner. Using in vitro phosphotransfer profiling, we identified two target RRs for EL368 and two additional LOV-HKs (EL346 and EL362) encoded within the host genome. The two RRs include a PhyR-type transcriptional regulator (EL_PhyR) and a receiver-only protein (EL_LovR), reminiscent of stress-triggered systems in other bacteria. Taken together, our data provide a biochemical foundation for this light-regulated signaling module of sensors, effectors, and regulators that control bacterial responses to environmental conditions.

Indexed as

LightChromatography, GelCloning, MolecularDimerizationHistidine KinaseKineticsModels, MolecularOxygenPhosphorylationProtein ConformationProtein KinasesScattering, RadiationSignal TransductionHistidine KinaseOxygenProtein Kinases

Identifiers

PMID23806044
PMCPMC3830641
OpenAlexW2082046299

What OpenQuestion holds

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LicenceTDM
Read underepoch 390

Registered trials

None linked

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.