Evidence map›Paper›PMID 17965708›Full record

ArticleNature chemical biology2007

Dissecting metal ion-dependent folding and catalysis of a single DNAzyme.

Hee-Kyung Kim, Ivan Rasnik, Juewen Liu, Taekjip Ha, Yi Lu

Abstract read
In one paragraph

Article in Nature chemical biology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers.

0numbers the graph read from it
0cells of the map it votes in
44citing 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

44 citing papers in PubMed.

  1. Review
  2. Review
  3. Article
  4. Article
  5. The dynamic world of the 8-17 DNAzyme.Nature communications · 2024
    Article
  6. The Programmable Catalytic Core of 8-17 DNAzymes.Molecules (Basel, Switzerland) · 2024
    Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Review
  13. Article
  14. Article
  15. Article
  16. Review
  17. Review
  18. Article
  19. Review
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors.

Hee-Kyung KimDepartment of Chemistry, University of Illinois at Urbana-Champaign, 600 South Mathews Avenue, Urbana, Illinois 61801, USA.
Ivan Rasnik
Juewen Liu
Taekjip Ha
Yi Lu

Funding

Single Molecule Study of Helicase MechanismsR01GM065367 · NIGMS · UNIVERSITY OF ILLINOIS URBANA-CHAMPAIGN · PI HA, TAEKJIP · 2002 to 2014
$3.6M
Selection, Characterization & Application of Paramagnetic Metal-specific DNAzymesR01ES016865 · NIEHS · UNIVERSITY OF ILLINOIS AT URBANA-CHAMPAIGN · PI LU, YI · 2008 to 2012
$1.7M
NIEHS NIH HHS R01 ES016865NIGMS NIH HHS GM065367NIGMS NIH HHS R01 GM065367
6 · The paper itself

Abstract

Protein metalloenzymes use various modes for functions for which metal-dependent global conformational change is required in some cases but not in others. In contrast, most ribozymes require a global folding that almost always precedes enzyme reactions. Herein we studied metal-dependent folding and cleavage activity of the 8-17 DNAzyme using single-molecule fluorescence resonance energy transfer. Addition of Zn2+ and Mg2+ induced folding of the DNAzyme into a more compact structure followed by a cleavage reaction, which suggests that the DNAzyme may require metal-dependent global folding for activation. In the presence of Pb2+, however, the cleavage reaction occurred without a precedent folding step, which suggests that the DNAzyme may be prearranged to accept Pb2+ for the activity. Neither ligation reaction of the cleaved substrates nor dynamic changes between folded and unfolded states was observed. These features may contribute to the unusually fast Pb2+-dependent reaction of the DNAzyme. These results suggest that DNAzymes can use all modes of activation that metalloproteins use.

Indexed as

Protein FoldingBase SequenceCatalysisDNA, CatalyticIonsLeadMagnesiumMetals, HeavyNucleic Acid ConformationZincDNA, CatalyticIonsLeadMagnesiumMetals, HeavyZinc

Identifiers

PMID17965708
PMCPMC4376948

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.