Evidence map›Paper›PMID 12574513›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2003

Assembly of core helices and rapid tertiary folding of a small bacterial group I ribozyme.

Prashanth Rangan, Benoît Masquida, Eric Westhof, Sarah A Woodson

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 67 papers.

0numbers the graph read from it
0cells of the map it votes in
67citing papers in PubMed
4.9field-weighted citation impact, top 4% 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

67 citing papers in PubMed, 142 citations in OpenAlex.

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  11. Bridging the gap between in vitro and in vivo RNA folding.Quarterly reviews of biophysics · 2016
    Article
  12. Intramolecular phenotypic capacitance in a modular RNA molecule.Proceedings of the National Academy of Sciences of the United States of America · 2015
    Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Article
  19. Increased ribozyme activity in crowded solutions.The Journal of biological chemistry · 2014
    Article
  20. Article

7 more citing papers are in PubMed but not listed here.

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

4 authors at 3 institutions in 2 countries.

Prashanth RanganT. C. Jenkins Department of Biophysics, Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218, USA.
Benoît Masquida
Eric Westhof
Sarah A Woodson
Johns Hopkins University · USCentre National de la Recherche Scientifique · FRInstitut de Biologie Moléculaire et Cellulaire · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Compact but non-native intermediates have been implicated in the hierarchical folding of several large RNAs, but there is little information on their structure. In this article, ribonuclease and hydroxyl radical cleavage protection assays showed that base pairing of core helices stabilize a compact state of a small group I ribozyme from Azoarcus pre-tRNA(ile). Base pairing of the ribozyme core requires 10-fold less Mg(2+) than stable tertiary interactions, indicating that assembly of helices in the catalytic core represents a distinct phase that precedes the formation of native tertiary structure. Tertiary folding occurs in <100 ms at 37 degrees C. Such rapid folding is unprecedented among group I ribozymes and illustrates the association between structural complexity and folding time. A 3D model of the Azoarcus ribozyme was constructed by identifying homologous sequence motifs in rRNA. The model reveals distinct structural features, such as a large interface between the P4-P6 and P3-P9 domains, that may explain the unusual stability of the Azoarcus ribozyme and the cooperativity of folding.

Indexed as

Protein FoldingAzoarcusBase SequenceIntronsMagnesiumModels, MolecularMolecular Sequence DataNucleic Acid ConformationProtein Structure, TertiaryRNA, CatalyticMagnesiumRNA, Catalytic

Identifiers

PMID12574513
PMCPMC149874
OpenAlexW1993619986

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.