Evidence map›Paper›PMID 22010272›Full record

ReviewMetal ions in life sciences2011

Metal ions: supporting actors in the playbook of small ribozymes.

Alexander E Johnson-Buck, Sarah E McDowell, Nils G Walter

Abstract readReview
In one paragraph

Review in Metal ions in life sciences, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
9.5field-weighted citation impact, top 2% 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

23 citing papers in PubMed, 42 citations in OpenAlex.

  1. Quantifying the Number and Affinity of MnMethods in molecular biology (Clifton, N.J.) · 2022
    Article
  2. Article
  3. Article
  4. In vitro selection of ribozyme ligases that use prebiotically plausible 2-aminoimidazole-activated substrates.Proceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  5. Biological Pathway Specificity in the Cell-Does Molecular Diversity Matter?BioEssays : news and reviews in molecular, cellular and developmental biology · 2019
    Review
  6. Article
  7. Review
  8. How Does MgBiophysical journal · 2017
    Article
  9. Unwinding the twister ribozyme: from structure to mechanism.Wiley interdisciplinary reviews. RNA · 2017
    Review
  10. Article
  11. NMR Structures and Dynamics in a Prohead RNA Loop that Binds Metal Ions.The journal of physical chemistry letters · 2016
    Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. Article
  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

3 authors at 1 institution in 1 country.

Alexander E Johnson-BuckDepartment of Chemistry, University of Michigan, 930 N. University, Ann Arbor, MI 48109-1055, USA. alebuck@umich.edu
Sarah E McDowell
Nils G Walter
University of Michigan–Ann Arbor · US

Funding

U-turn of the Hepatitis Delta Virus RibozymeR01GM062357 · NIGMS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI WALTER, NILS G · 2001 to 2019
$5.8M
Spliceosome Mechanism Dissected at the Single Molecule LevelR01GM098023 · NIGMS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI WALTER, NILS G · 2012 to 2015
$1.3M
Trekking with the Ribognome: Single Molecule Microscopy of Intracellular miRNPsR01GM081025 · NIGMS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI WALTER, NILS G · 2007 to 2010
$998k
NIGMS NIH HHS GM062357NIGMS NIH HHS R01 GM062357NIGMS NIH HHS R01 GM081025NIGMS NIH HHS R01 GM098023
6 · The paper itself

Abstract

Since the 1980s, several small RNA motifs capable of chemical catalysis have been discovered. These small ribozymes, composed of between approximately 40 and 200 nucleotides, have been found to play vital roles in the replication of subviral and viral pathogens, as well as in gene regulation in prokaryotes, and have recently been discovered in noncoding eukaryotic RNAs. All of the known natural small ribozymes - the hairpin, hammerhead, hepatitis delta virus, Varkud satellite, and glmS ribozymes--catalyze the same self-cleavage reaction as RNase A, resulting in two products, one bearing a 2'-3' cyclic phosphate and the other a 5'-hydroxyl group. Although originally thought to be obligate metalloenzymes like the group I and II self-splicing introns, the small ribozymes are now known to support catalysis in a wide variety of cations that appear to be only indirectly involved in catalysis. Nevertheless, under physiologic conditions, metal ions are essential for the proper folding and function of the small ribozymes, the most effective of these being magnesium. Metal ions contribute to catalysis in the small ribozymes primarily by stabilizing the catalytically active conformation, but in some cases also by activating RNA functional groups for catalysis, directly participating in catalytic acid-base chemistry, and perhaps by neutralizing the developing negative charge of the transition state. Although interactions between the small ribozymes and cations are relatively nonspecific, ribozyme activity is quite sensitive to the types and concentrations of metal ions present in solution, suggesting a close evolutionary relationship between cellular metal ion homeostasis and cation requirements of catalytic RNAs, and perhaps RNA in general.

Indexed as

Nucleic Acid ConformationCatalysisCatalytic DomainIonsMetalsModels, MolecularMolecular StructureRNA, CatalyticIonsMetalsRNA, Catalytic

Identifiers

PMID22010272
PMCPMC3365584
OpenAlexW2161329577

What OpenQuestion holds

Textmetadata
LicenceTDM
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.