Evidence map›Paper›PMID 18467502›Full record

ArticleAmerican journal of physiology. Gastrointestinal and liver physiology2008

Inhibition of tristetraprolin deadenylation by poly(A) binding protein.

Robert M Rowlett, Carol A Chrestensen, Melanie J Schroeder, Mary G Harp, Jared W Pelo, Jeffery Shabanowitz, Robert DeRose, Donald F Hunt, Thomas W Sturgill, Mark T Worthington

Open access · greenAbstract read
In one paragraph

Article in American journal of physiology. Gastrointestinal and liver physiology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
0.8field-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

12 citing papers in PubMed, 19 citations in OpenAlex.

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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 1 institution in 1 country.

Robert M RowlettDepartment of Medicine, University of Virginia, Charlottesville, VA, USA.
Carol A Chrestensen
Melanie J Schroeder
Mary G Harp
Jared W Pelo
Jeffery Shabanowitz
Robert DeRose
Donald F Hunt
Thomas W Sturgill
Mark T Worthington
University of Virginia · US

Funding

PROTEIN SEQUENCING BY TANDEM MASS SPECTROMETRYR01GM037537 · NIGMS · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI HUNT, DONALD F · 1987 to 2023
$17.8M
Regulation and Function of MAPKAP KinasesR01GM062890 · NIGMS · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI STURGILL, THOMAS W · 2002 to 2005
$1.2M
Function of Nup475 in the Gastrointestinal TrackR01DK060720 · NIDDK · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI WORTHINGTON, MARK T · 2002 to 2005
$888k
NIDDK NIH HHS DK-060720NIGMS NIH HHS GM-62890NIGMS NIH HHS R01 GM037537
6 · The paper itself

Abstract

Tristetraprolin (TTP) is the prototype for a family of RNA binding proteins that bind the tumor necrosis factor (TNF) messenger RNA AU-rich element (ARE), causing deadenylation of the TNF poly(A) tail, RNA decay, and silencing of TNF protein production. Using mass spectrometry sequencing we identified poly(A) binding proteins-1 and -4 (PABP1 and PABP4) in high abundance and good protein coverage from TTP immunoprecipitates. PABP1 significantly enhanced TNF ARE binding by RNA EMSA and prevented TTP-initiated deadenylation in an in vitro macrophage assay of TNF poly(A) stability. Neomycin inhibited TTP-promoted deadenylation at concentrations shown to inhibit the deadenylases poly(A) ribonuclease and CCR4. Stably transfected RAW264.7 macrophages overexpressing PABP1 do not oversecrete TNF; instead they upregulate TTP protein without increasing TNF protein production. The PABP1 inhibition of deadenylation initiated by TTP does not require the poly(A) binding regions in RRM1 and RRM2, suggesting a more complicated interaction than simple masking of the poly(A) tail from a 3'-exonuclease. Like TTP, PABP1 is a substrate for p38 MAP kinase. Finally, PABP1 stabilizes cotransfected TTP in 293T cells and prevents the decrease in TTP levels seen with p38 MAP kinase inhibition. These findings suggest several levels of functional antagonism between TTP and PABP1 that have implications for regulation of unstable mRNAs like TNF.

Indexed as

Gene SilencingRNA Stability3' Untranslated RegionsAmino Acid SequenceAnimalsBase SequenceCell LineEnzyme InhibitorsExoribonucleasesHumansImmunoprecipitationMass SpectrometryMiceMice, Inbred BALB CMolecular Sequence DataNeomycin3' Untranslated RegionsEnzyme InhibitorsExoribonucleasesNeomycinp38 Mitogen-Activated Protein KinasesPoly(A)-Binding Protein IRibonucleoside Diphosphate ReductaseRNA, MessengerTristetraprolinTumor Necrosis Factor-alphaZfp36 protein, mouse

Identifiers

PMID18467502
PMCPMC2536786
OpenAlexW2162682147

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.