Evidence map›Paper›PMID 22323607›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2012

Interdomain dynamics and coactivation of the mRNA decapping enzyme Dcp2 are mediated by a gatekeeper tryptophan.

Stephen N Floor, Mark S Borja, John D Gross

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
0.9field-weighted citation impact, top 27% 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

28 citing papers in PubMed, 35 citations in OpenAlex.

  1. Article
  2. Review
  3. Assessing the applicability ofJournal of biomolecular NMR · 2023
    Article
  4. Article
  5. Article
  6. Dcp2 C-terminaleLife · 2022
    Article
  7. Eukaryotic mRNA Decapping Activation.Frontiers in genetics · 2022
    Review
  8. Article
  9. Review
  10. Article
  11. Review
  12. mRNA decapping: finding the right structures.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2018
    Review
  13. Control of mRNA decapping by autoinhibition.Nucleic acids research · 2018
    Article
  14. Article
  15. Changes in conformational equilibria regulate the activity of the Dcp2 decapping enzyme.Proceedings of the National Academy of Sciences of the United States of America · 2017
    Article
  16. Article
  17. Structural basis of mRNA-cap recognition by Dcp1-Dcp2.Nature structural & molecular biology · 2016
    Article
  18. Article
  19. Article
  20. 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

3 authors at 1 institution in 1 country.

Stephen N FloorGraduate Group in Biophysics, University of California, San Francisco, CA 94158, USA.
Mark S Borja
John D Gross
University of California, San Francisco · US

Funding

Maximizing Opportunities for Research Excellence - Evaluation Training SupplementR25GM056847 · NIGMS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI DUNCAN, D'ANNE S., SELLO, JASON K · 1998 to 2023
$14.1M
Proposal for Central California 900 MHZ NMR SpectrometerP41GM068933 · NIGMS · UNIVERSITY OF CALIFORNIA BERKELEY · PI WEMMER, DAVID E · 2003 to 2007
$5.9M
Structure and Function of the Decapping Enzyme ComplexR01GM078360 · NIGMS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI GROSS, JOHN D · 2009 to 2018
$2.5M
NIGMS NIH HHS 1R25GM56847NIGMS NIH HHS GM68933NIGMS NIH HHS P41 GM068933NIGMS NIH HHS R01 GM078360NIGMS NIH HHS R01GM078360NIGMS NIH HHS R25 GM056847
6 · The paper itself

Abstract

Conformational dynamics in bilobed enzymes can be used to regulate their activity. One such enzyme, the eukaryotic decapping enzyme Dcp2, controls the half-life of mRNA by cleaving the 5' cap structure, which exposes a monophosphate that is efficiently degraded by exonucleases. Decapping by Dcp2 is thought to be controlled by an open-to-closed transition involving formation of a composite active site with two domains sandwiching substrate, but many details of this process are not understood. Here, using NMR spectroscopy and enzyme kinetics, we show that Trp43 of Schizosaccharomyces pombe Dcp2 is a conserved gatekeeper of this open-to-closed transition. We find that Dcp2 samples multiple conformations in solution on the millisecond-microsecond timescale. Mutation of the gatekeeper tryptophan abolishes the dynamic behavior of Dcp2 and attenuates coactivation by a yeast enhancer of decapping (Edc1). Our results determine the dynamics of the open-to-closed transition in Dcp2, suggest a structural pathway for coactivation, predict that Dcp1 directly contacts the catalytic domain of Dcp2, and show that coactivation of decapping by Dcp2 is linked to formation of the composite active site.

Indexed as

Amino Acid SequenceBinding SitesCatalytic DomainEndoribonucleasesEnzyme ActivationModels, MolecularMolecular Sequence DataMutationProtein Structure, SecondaryProtein Structure, TertiarySchizosaccharomycesSchizosaccharomyces pombe ProteinsSolutionsStructure-Activity RelationshipTryptophanDcp1 protein, S pombeDcp2 protein, S pombeEndoribonucleasesmRNA decapping enzymesSchizosaccharomyces pombe ProteinsSolutionsTryptophan

Identifiers

PMID22323607
PMCPMC3286934
OpenAlexW1967172732

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.