Evidence map›Paper›PMID 15383679›Full record

ArticleRNA (New York, N.Y.)2004

Nematode m7GpppG and m3(2,2,7)GpppG decapping: activities in Ascaris embryos and characterization of C. elegans scavenger DcpS.

Leah S Cohen, Claudette Mikhli, Cassandra Friedman, Marzena Jankowska-Anyszka, Janusz Stepinski, Edward Darzynkiewicz, Richard E Davis

Open access · bronzeAbstract read
In one paragraph

Article in RNA (New York, N.Y.), 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
1.1field-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

32 citing papers in PubMed, 55 citations in OpenAlex.

  1. Article
  2. Review
  3. Eukaryotic mRNA Decapping Activation.Frontiers in genetics · 2022
    Review
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Nuclei Isolation from NematodeBio-protocol · 2017
    Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  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

7 authors at 2 institutions in 2 countries.

Leah S CohenDepartment of Biology, City univiersity of new york, Graduate Center, Staten Island, 10314, USA.
Claudette Mikhli
Cassandra Friedman
Marzena Jankowska-Anyszka
Janusz Stepinski
Edward Darzynkiewicz
Richard E Davis
The Graduate Center, CUNY · USUniversity of Warsaw · PL

Funding

IN VIVO ANALYSIS OF SL ADDITION IN ASCARIS EMBRYOSR01AI049558 · NIAID · UNIVERSITY OF COLORADO DENVER · PI DAVIS, RICHARD E. · 2000 to 2015
$4.8M
NIAID NIH HHS AI49558NIAID NIH HHS R01 AI049558
6 · The paper itself

Abstract

A spliced leader contributes the mature 5'ends of many mRNAs in trans-splicing organisms. Trans-spliced metazoan mRNAs acquire an m3(2,2,7)GpppN cap from the added spliced leader exon. The presence of these caps, along with the typical m7GpppN cap on non-trans-spliced mRNAs, requires that cellular mRNA cap-binding proteins and mRNA metabolism deal with different cap structures. We have developed and used an in vitro system to examine mRNA degradation and decapping activities in nematode embryo extracts. The predominant pathway of mRNA decay is a 3' to 5' pathway with exoribonuclease degradation of the RNA followed by hydrolysis of resulting mRNA cap by a scavenger (DcpS-like) decapping activity. Direct decapping of mRNA by a Dcp1/Dcp2-like activity does occur, but is approximately 15-fold less active than the 3' to 5' pathway. The DcpS-like activity in nematode embryo extracts hydrolyzes both m7GpppG and m3(2,2,7)GpppG dinucleoside triphosphates. The Dcp1/Dcp2-like activity in extracts also hydrolyzes these two cap structures at the 5' ends of RNAs. Interestingly, recombinant nematode DcpS differs from its human ortholog in its substrate length requirement and in its capacity to hydrolyze m3(2,2,7)GpppG.

Indexed as

AnimalsAscarisCaenorhabditis elegansCaenorhabditis elegans ProteinsDinucleoside PhosphatesEndoribonucleasesHydrolysisRecombinant ProteinsRNA CapsRNA, HelminthRNA, Spliced LeaderSubstrate Specificity7-methyl-diguanosine triphosphateCaenorhabditis elegans ProteinsDinucleoside PhosphatesEndoribonucleasesmRNA decapping enzymesRecombinant ProteinsRNA CapsRNA, HelminthRNA, Spliced Leader

Identifiers

PMID15383679
PMCPMC1370647
OpenAlexW2123082879

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.