Evidence map›Paper›PMID 19710013›Full record

ArticleThe Journal of biological chemistry2009

Structural insights into parasite eIF4E binding specificity for m7G and m2,2,7G mRNA caps.

Weizhi Liu, Rui Zhao, Craig McFarland, Jeffrey Kieft, Anna Niedzwiecka, Marzena Jankowska-Anyszka, Janusz Stepinski, Edward Darzynkiewicz, David N M Jones, Richard E Davis

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
1.6field-weighted citation impact, top 18% 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

20 citing papers in PubMed, 41 citations in OpenAlex.

  1. Review
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  7. Computational study on the allosteric mechanism ofComputational and structural biotechnology journal · 2021
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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

10 authors at 4 institutions in 2 countries.

Weizhi LiuDepartment of Biochemistry and Molecular Genetics, University of Colorado School of Medicine, Aurora, Colorado 80045, USA.
Rui Zhao
Craig McFarland
Jeffrey Kieft
Anna Niedzwiecka
Marzena Jankowska-Anyszka
Janusz Stepinski
Edward Darzynkiewicz
David N M Jones
Richard E Davis
University of Colorado Denver · USInstitute of Biochemistry and Biophysics, Polish Academy of Sciences · PLPolish Academy of Sciences · PLUniversity of Warsaw · PL

Funding

University of Colorado Cancer Center Support Grant - Lung Cancer Patient-Derived Xenografts with Autologous Human Immune SystemsP30CA046934 · NCI · UNIVERSITY OF COLORADO DENVER · PI James V Degregori · 1988 to 2026
$117.0M
IN VIVO ANALYSIS OF SL ADDITION IN ASCARIS EMBRYOSR01AI049558 · NIAID · UNIVERSITY OF COLORADO DENVER · PI DAVIS, RICHARD E. · 2000 to 2015
$4.8M
Structural basis of protein synthesis by the hepatitis C virus IRES RNAR01GM081346 · NIGMS · UNIVERSITY OF COLORADO DENVER · PI KIEFT, JEFFREY S · 2008 to 2016
$2.0M
Understanding the structure and function of splicing factor Prp8R01GM080334 · NIGMS · UNIVERSITY OF COLORADO DENVER · PI ZHAO, RUI · 2008 to 2012
$1.5M
Structural and biophysical analysis of a viral IRESR01GM072560 · NIGMS · UNIVERSITY OF COLORADO DENVER · PI KIEFT, JEFFREY S · 2005 to 2009
$1.4M
Structural Analysis of Helminth mRNA Cap-Binding ProteinsR03AI080805 · NIAID · UNIVERSITY OF COLORADO DENVER · PI DAVIS, RICHARD E. · 2009 to 2010
$153k
Howard Hughes Medical Institute 55005604NCI NIH HHS P30 CA046934NIAID NIH HHS AI049558NIAID NIH HHS AI080805NIAID NIH HHS R01 AI049558NIAID NIH HHS R03 AI080805NIGMS NIH HHS GM072560NIGMS NIH HHS GM080334NIGMS NIH HHS GM081346NIGMS NIH HHS R01 GM072560NIGMS NIH HHS R01 GM080334NIGMS NIH HHS R01 GM081346
6 · The paper itself

Abstract

The eukaryotic translation initiation factor eIF4E recognizes the mRNA cap, a key step in translation initiation. Here we have characterized eIF4E from the human parasite Schistosoma mansoni. Schistosome mRNAs have either the typical monomethylguanosine (m(7)G) or a trimethylguanosine (m(2,2,7)G) cap derived from spliced leader trans-splicing. Quantitative fluorescence titration analyses demonstrated that schistosome eIF4E has similar binding specificity for both caps. We present the first crystal structure of an eIF4E with similar binding specificity for m(7)G and m(2,2,7)G caps. The eIF4E.m(7)GpppG structure demonstrates that the schistosome protein binds monomethyl cap in a manner similar to that of single specificity eIF4Es and exhibits a structure similar to other known eIF4Es. The structure suggests an alternate orientation of a conserved, key Glu-90 in the cap-binding pocket that may contribute to dual binding specificity and a position for mRNA bound to eIF4E consistent with biochemical data. Comparison of NMR chemical shift perturbations in schistosome eIF4E on binding m(7)GpppG and m(2,2,7)GpppG identified key differences between the two complexes. Isothermal titration calorimetry demonstrated significant thermodynamics differences for the binding process with the two caps (m(7)G versus m(2,2,7)G). Overall the NMR and isothermal titration calorimetry data suggest the importance of intrinsic conformational flexibility in the schistosome eIF4E that enables binding to m(2,2,7)G cap.

Indexed as

Amino Acid SequenceAnimalsBinding SitesEukaryotic Initiation Factor-4EHumansKineticsMolecular ConformationMolecular Sequence DataProtein BindingProtozoan ProteinsRNA CapsSchistosoma mansoniSchistosomiasis mansoniSequence AlignmentSubstrate SpecificityEukaryotic Initiation Factor-4EProtozoan ProteinsRNA Caps

Identifiers

PMID19710013
PMCPMC2781531
OpenAlexW2169255399

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.