Evidence map›Paper›PMID 11424938›Full record

ArticleRNA (New York, N.Y.)2001

The mechanism and regulation of deadenylation: identification and characterization of Xenopus PARN.

P R Copeland, M Wormington

Open access · bronzeAbstract read
In one paragraph

Article in RNA (New York, N.Y.), 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed
1.5field-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

42 citing papers in PubMed, 109 citations in OpenAlex.

  1. Article
  2. Landscape and regulation of mRNA translation in the earlybioRxiv : the preprint server for biology · 2025
    Article
  3. Article
  4. Review
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  8. Article
  9. Review
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  11. Review
  12. Article
  13. Review
  14. Translational Control of Germ Cell Decisions.Results and problems in cell differentiation · 2017
    Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Translational control in oocyte development.Cold Spring Harbor perspectives in biology · 2011
    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 2 institutions in 1 country.

P R CopelandDepartment of Biology, University of Virginia, Charlottesville 22903, USA. copelap@ccf.org
M Wormington
Cleveland Clinic Lerner College of Medicine · USUniversity of Virginia · US

Funding

DEVELOPMENT REGULATION OF XENOPUS RIBOSOMAL PROTEIN GENER01HD017691 · NICHD · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI WORMINGTON, W. MICHAEL · 1985 to 1995
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NICHD NIH HHS HD17691
6 · The paper itself

Abstract

In Xenopus oocytes, the deadenylation of a specific class of maternal mRNAs results in their translational repression. Here we report the purification, characterization, and molecular cloning of the Xenopus poly(A) ribonuclease (xPARN). xPARN copurifies with two polypeptides of 62 kDa and 74 kDa, and we provide evidence that the 62-kDa protein is a proteolytic product of the 74-kDa protein. We have isolated the full-length xPARN cDNA, which contains the tripartite exonuclease domain conserved among RNase D family members, a putative RNA recognition motif, and a domain found in minichromosome maintenance proteins. Characterization of the xPARN enzyme shows that it is a poly(A)-specific 3' exonuclease but does not require an A residue at the 3' end. However, the addition of 25 nonadenylate residues at the 3' terminus, or a 3' terminal phosphate is inhibitory. Western analysis shows that xPARN is expressed throughout early development, suggesting that it may participate in the translational silencing and destabilization of maternal mRNAs during both oocyte maturation and embryogenesis. In addition, microinjection experiments demonstrate that xPARN can be activated in the oocyte nucleus in the absence of cytoplasmic components and that nuclear export of deadenylated RNA is impeded. Based on the poly(A) binding activity of xPARN in the absence of catalysis, a model for substrate specificity is proposed.

Indexed as

Amino Acid SequenceAnimalsChromatography, Ion ExchangeCloning, MolecularDNA, ComplementaryElectrophoresis, Polyacrylamide GelExoribonucleasesMolecular Sequence DataPoly ASequence Homology, Amino AcidSubstrate SpecificityXenopusDNA, ComplementaryExoribonucleasesPoly A

Identifiers

PMID11424938
PMCPMC1370141
OpenAlexW2123173936

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.