Evidence map›Paper›PMID 17936712›Full record

ArticleMolecular cell2007

Do DEAD-box proteins promote group II intron splicing without unwinding RNA?

Mark Del Campo, Pilar Tijerina, Hari Bhaskaran, Sabine Mohr, Quansheng Yang, Eckhard Jankowsky, Rick Russell, Alan M Lambowitz

Abstract read
In one paragraph

Article in Molecular cell, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed
–field-weighted citation impact
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

43 citing papers in PubMed.

  1. Article
  2. Assembly factors chaperone ribosomal RNA folding by isolating helical junctions that are prone to misfolding.Proceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. DEAD-box protein CYT-19 is activated by exposed helices in a group I intron RNA.Proceedings of the National Academy of Sciences of the United States of America · 2014
    Article
  8. RNA helicase proteins as chaperones and remodelers.Annual review of biochemistry · 2014
    Review
  9. RNA catalytic activity as a probe of chaperone-mediated RNA folding.Methods in molecular biology (Clifton, N.J.) · 2014
    Article
  10. Review
  11. Review
  12. Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. Group II introns: mobile ribozymes that invade DNA.Cold Spring Harbor perspectives in biology · 2011
    Review
  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

8 authors.

Mark Del CampoInstitute for Cellular and Molecular Biology, University of Texas at Austin, Austin, TX 78712, USA.
Pilar Tijerina
Hari Bhaskaran
Sabine Mohr
Quansheng Yang
Eckhard Jankowsky
Rick Russell
Alan M Lambowitz

Funding

RNA SPLICING IN NEUROSPORA MITOCHONDRIAR01GM037951 · NIGMS · UNIVERSITY OF TEXAS AUSTIN · PI LAMBOWITZ, ALAN M. · 1986 to 2016
$6.6M
Mechansim of DExH/D proteinsR01GM067700 · NIGMS · CASE WESTERN RESERVE UNIVERSITY · PI JANKOWSKY, ECKHARD · 2003 to 2015
$4.2M
Physical and functional probing of DEAD-box proteins as general RNA chaperonesR01GM070456 · NIGMS · UNIVERSITY OF TEXAS AUSTIN · PI RUSSELL, RICK · 2004 to 2017
$3.6M
INVOLVEMENT OF PROTEINS IN SPLICING GROUP I INTRONSR37GM037951 · NIGMS · UNIVERSITY OF TEXAS AUSTIN · PI LAMBOWITZ, ALAN M. · 1993 to 2002
$1.2M
Structure and function of a DEAD-box protein in group I intron splicingF32GM076961 · NIGMS · UNIVERSITY OF TEXAS AT AUSTIN · PI DEL CAMPO, MARK · 2006 to 2008
$145k
NIGMS NIH HHS F32 GM076961NIGMS NIH HHS F32-GM76961NIGMS NIH HHS GM037951NIGMS NIH HHS GM067700NIGMS NIH HHS GM070456NIGMS NIH HHS R01 GM037951NIGMS NIH HHS R01 GM067700NIGMS NIH HHS R01 GM070456NIGMS NIH HHS R37 GM037951
6 · The paper itself

Abstract

The DEAD-box protein Mss116p promotes group II intron splicing in vivo and in vitro. Here we explore two hypotheses for how Mss116p promotes group II intron splicing: by using its RNA unwinding activity to act as an RNA chaperone or by stabilizing RNA folding intermediates. We show that an Mss116p mutant in helicase motif III (SAT/AAA), which was reported to stimulate splicing without unwinding RNA, retains ATP-dependent unwinding activity and promotes unfolding of a structured RNA. Its unwinding activity increases sharply with decreasing duplex length and correlates with group II intron splicing activity in quantitative assays. Additionally, we show that Mss116p can promote ATP-independent RNA unwinding, presumably via single-strand capture, also potentially contributing to DEAD-box protein RNA chaperone activity. Our findings favor the hypothesis that DEAD-box proteins function in group II intron splicing as in other processes by using their unwinding activity to act as RNA chaperones.

Indexed as

IntronsNucleic Acid ConformationRNA SplicingDEAD-box RNA HelicasesMutationNucleic Acid DenaturationRecombinant Fusion ProteinsRNASaccharomyces cerevisiae ProteinsDEAD-box RNA HelicasesMSS116 protein, S cerevisiaeRecombinant Fusion ProteinsRNASaccharomyces cerevisiae Proteins

Identifiers

PMID17936712
PMCPMC2062517

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.