Evidence map›Paper›PMID 22004755›Full record

ArticleBiophysical journal2011

Dynamics of protein folding and cofactor binding monitored by single-molecule force spectroscopy.

Yi Cao, Hongbin Li

Open access · bronzeAbstract read
In one paragraph

Article in Biophysical journal, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
2.2field-weighted citation impact, top 12% 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

10 citing papers in PubMed, 33 citations in OpenAlex.

  1. Discovery of Glycation-Derived Cross-links at Arginine.Journal of the American Chemical Society · 2026
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  2. Review
  3. Article
  4. Review
  5. Catalysts (Basel, Switzerland) · 2017
    Article
  6. Nucleotides regulate the mechanical hierarchy between subdomains of the nucleotide binding domain of the Hsp70 chaperone DnaK.Proceedings of the National Academy of Sciences of the United States of America · 2015
    Article
  7. Article
  8. Article
  9. Ultrafast folding kinetics and cooperativity of villin headpiece in single-molecule force spectroscopy.Proceedings of the National Academy of Sciences of the United States of America · 2013
    Article
  10. Calcium-dependent folding of single calmodulin molecules.Proceedings of the National Academy of Sciences of the United States of America · 2012
    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

2 authors at 1 institution in 1 country.

Yi CaoDepartment of Chemistry, University of British Columbia, Vancouver, British Columbia, Canada.
Hongbin Li
University of British Columbia · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Many proteins in living cells require cofactors to carry out their biological functions. To reach their functional states, these proteins need to fold into their unique three-dimensional structures in the presence of their cofactors. Two processes, folding of the protein and binding of cofactors, intermingle with each other, making the direct elucidation of the folding mechanism of proteins in the presence of cofactors challenging. Here we use single-molecule atomic force microscopy to directly monitor the folding and cofactor binding dynamics of an engineered metal-binding protein G6-53 at the single-molecule level. Using the mechanical stability of different conformers of G6-53 as sensitive probes, we directly identified different G6-53 conformers (unfolded, apo- and Ni(2+)-bound) populated along the folding pathway of G6-53 in the presence of its cofactor Ni(2+). By carrying out single-molecule atomic force microscopy refolding experiments, we monitored kinetic evolution processes of these different conformers. Our results suggested that the majority of G6-53 folds through a binding-after-folding mechanism, whereas a small fraction follows a binding-before-folding pathway. Our study opens an avenue to utilizing force spectroscopy techniques to probe the folding dynamics of proteins in the presence of cofactors at the single-molecule level, and we anticipated that this method can be used to study a wide variety of proteins requiring cofactors for their function.

Indexed as

Microscopy, Atomic ForceProtein FoldingApoproteinsCarrier ProteinsKineticsModels, MolecularNickelProtein BindingProtein ConformationApoproteinsCarrier ProteinsNickel

Identifiers

PMID22004755
PMCPMC3192977
OpenAlexW2167441653

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.