Evidence map›Paper›PMID 29478808›Full record

ArticleMolecular cell2018

Allosteric Effector ppGpp Potentiates the Inhibition of Transcript Initiation by DksA.

Vadim Molodtsov, Elena Sineva, Lu Zhang, Xuhui Huang, Michael Cashel, Sarah E Ades, Katsuhiko S Murakami

Open access · bronzeAbstract read
In one paragraph

Article in Molecular cell, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 69 papers.

0numbers the graph read from it
0cells of the map it votes in
69citing papers in PubMed
6.7field-weighted citation impact, top 2% 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

69 citing papers in PubMed, 108 citations in OpenAlex.

  1. Article
  2. Article
  3. Mike Cashel: magic spot magician.Journal of bacteriology · 2026
    Article
  4. Article
  5. HflX mediates rifampicin resistance inFrontiers in microbiology · 2026
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Broad-spectrum tolerance to disinfectant-mediated bacterial killing due to mutation of the PheS aminoacyl tRNA synthetase.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  12. Review
  13. Article
  14. Basal level of ppGpp coordinatesMicrobial cell (Graz, Austria) · 2023
    Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. Article
  20. Article

9 more citing papers are in PubMed but not listed here.

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

7 authors at 4 institutions in 3 countries.

Vadim MolodtsovDepartment of Biochemistry and Molecular Biology, The Center for RNA Molecular Biology, The Pennsylvania State University, University Park, PA 16802, USA.
Elena SinevaDepartment of Biochemistry and Molecular Biology, The Center for RNA Molecular Biology, The Pennsylvania State University, University Park, PA 16802, USA.
Lu ZhangState Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China.
Xuhui HuangDepartment of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong.
Michael CashelIntramural Research Program, Eunice Kennedy Shriver, National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892, USA.
Sarah E AdesDepartment of Biochemistry and Molecular Biology, The Center for RNA Molecular Biology, The Pennsylvania State University, University Park, PA 16802, USA. Electronic address: ades@psu.edu.
Katsuhiko S MurakamiDepartment of Biochemistry and Molecular Biology, The Center for RNA Molecular Biology, The Pennsylvania State University, University Park, PA 16802, USA. Electronic address: kum14@psu.edu.
Pennsylvania State University · USChinese Academy of Sciences · CNHong Kong University of Science and Technology · HKNational Institutes of Health · US

Funding

Integration Of Macromolecular SynthesisZIAHD000067 · NICHD · EUNICE KENNEDY SHRIVER NATIONAL INSTITUTE OF CHILD HEALTH & HUMAN DEVELOPMENT · PI CASHEL, MICHAEL · 2009 to 2021
$6.1M
X-Ray Crystallographic Studies of Multi-Subunit Nucleic Acid PolymerasesR01GM087350 · NIGMS · PENNSYLVANIA STATE UNIVERSITY, THE · PI MURAKAMI, KATSUHIKO · 2010 to 2018
$2.6M
Integrating Cell Envelope and Starvation Stress: Regulation of Sigma(E) by ppGppR01GM097365 · NIGMS · PENNSYLVANIA STATE UNIVERSITY, THE · PI ADES, SARAH E · 2012 to 2016
$1.3M
Intramural NIH HHS Z99 HD999999NIGMS NIH HHS R01 GM087350NIGMS NIH HHS R01 GM097365
6 · The paper itself

Abstract

DksA and ppGpp are the central players in the stringent response and mediate a complete reprogramming of the transcriptome. A major component of the response is a reduction in ribosome synthesis, which is accomplished by the synergistic action of DksA and ppGpp bound to RNA polymerase (RNAP) inhibiting transcription of rRNAs. Here, we report the X-ray crystal structures of Escherichia coli RNAP in complex with DksA alone and with ppGpp. The structures show that DksA accesses the template strand at the active site and the downstream DNA binding site of RNAP simultaneously and reveal that binding of the allosteric effector ppGpp reshapes the RNAP-DksA complex. The structural data support a model for transcriptional inhibition in which ppGpp potentiates the destabilization of open complexes by DksA. This work establishes a structural basis for understanding the pleiotropic effects of DksA and ppGpp on transcriptional regulation in proteobacteria.

Indexed as

Models, ChemicalModels, MolecularAllosteric RegulationCatalytic DomainCrystallography, X-RayDNA-Directed RNA PolymerasesEscherichia coliEscherichia coli ProteinsGuanine NucleotidesTranscriptomedksA protein, E coliDNA-Directed RNA PolymerasesEscherichia coli ProteinsGuanine Nucleotides

Identifiers

PMID29478808
PMCPMC5837818
OpenAlexW2754946830

What OpenQuestion holds

Textmetadata
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.