Evidence map›Paper›PMID 23235152›Full record

ArticleThe Journal of biological chemistry2013

Watching the bacteriophage N4 RNA polymerase transcription by time-dependent soak-trigger-freeze X-ray crystallography.

Ritwika S Basu, Katsuhiko S Murakami

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
2.6field-weighted citation impact, top 10% 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

23 citing papers in PubMed, 36 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Article
  6. Structural and Molecular Kinetic Features of Activities of DNA Polymerases.International journal of molecular sciences · 2022
    Review
  7. Review
  8. Article
  9. Article
  10. Article
  11. X-ray crystal structure of a reiterative transcription complex reveals an atypical RNA extension pathway.Proceedings of the National Academy of Sciences of the United States of America · 2017
    Article
  12. Review
  13. Article
  14. Structural basis of viral RNA-dependent RNA polymerase catalysis and translocation.Proceedings of the National Academy of Sciences of the United States of America · 2016
    Article
  15. Article
  16. Review
  17. Article
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  20. Review
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

2 authors at 1 institution in 1 country.

Ritwika S BasuDepartment of Biochemistry and Molecular Biology, The Center for RNA Molecular Biology, The Pennsylvania State University, University Park, Pennsylvania 16802, USA.
Katsuhiko S Murakami
Pennsylvania State University · US

Funding

Transcribing Activities in N4 Infected E. ColiR01AI012575 · NIAID · UNIVERSITY OF CHICAGO · PI ROTHMAN-DENES, LUCIA B. B · 1985 to 2013
$7.0M
NIAID NIH HHS AI12575NIAID NIH HHS R01 AI012575
6 · The paper itself

Abstract

The challenge for structural biology is to understand atomic-level macromolecular motions during enzymatic reaction. X-ray crystallography can reveal high resolution structures; however, one perceived limitation is that it reveals only static views. Here we use time-dependent soak-trigger-freeze X-ray crystallography, namely, soaking nucleotide and divalent metal into the bacteriophage RNA polymerase (RNAP)-promoter DNA complex crystals to trigger the nucleotidyl transfer reaction and freezing crystals at different time points, to capture real-time intermediates in the pathway of transcription. In each crystal structure, different intensities and shapes of electron density maps corresponding to the nucleotide and metal were revealed at the RNAP active site which allow watching the nucleotide and metal bindings and the phosphodiester bond formation in a time perspective. Our study provides the temporal order of substrate assembly and metal co-factor binding at the active site of enzyme which completes our understanding of the two-metal-ion mechanism and fidelity mechanism in single-subunit RNAPs. The nucleotide-binding metal (Me(B)) is coordinated at the active site prior to the catalytic metal (Me(A)). Me(A) coordination is only temporal, established just before and dissociated immediately after phosphodiester bond formation. We captured these elusive intermediates exploiting the slow enzymatic reaction in crystallo. These results demonstrate that the simple time-dependent soak-trigger-freeze X-ray crystallography offers a direct means for monitoring enzymatic reactions.

Indexed as

Transcription, GeneticBacteriophage N4Catalytic DomainCrystallography, X-RayDNA-Directed RNA PolymerasesDNA, ViralModels, MolecularNucleotidesPromoter Regions, GeneticProtonsStatic ElectricityTime FactorsDNA-Directed RNA PolymerasesDNA, ViralNucleotidesProtons

Identifiers

PMID23235152
PMCPMC3561550
OpenAlexW2045737062

What OpenQuestion holds

Textmetadata
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.