Evidence map›Paper›PMID 22024885›Full record

ArticleNature chemistry2011

Direct observation of disulfide isomerization in a single protein.

Jorge Alegre-Cebollada, Pallav Kosuri, Jaime Andrés Rivas-Pardo, Julio M Fernández

Abstract read
In one paragraph

Article in Nature chemistry, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers.

0numbers the graph read from it
0cells of the map it votes in
50citing 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

50 citing papers in PubMed.

  1. Review
  2. Article
  3. An innovative strategy for radical-mediated, bidirectional controlled disulfide exchange.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Smart Flow Electrosynthesis and Application of Organodisulfides in Redox Flow Batteries.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2022
    Article
  9. Article
  10. Review
  11. Review
  12. Article
  13. Review
  14. Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. Article
  20. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors.

Jorge Alegre-CebolladaDepartment of Biological Sciences, Columbia University, Northwest Corner Building, 550 West 120 Street, New York, New York 10027, USA.
Pallav Kosuri
Jaime Andrés Rivas-Pardo
Julio M Fernández

Funding

Single Molecule Studies of Titin ElasticityR01HL061228 · NHLBI · MAYO CLINIC COLL OF MEDICINE, ROCHESTER · PI FERNANDEZ, JULIO M · 1999 to 2017
$7.4M
Nanomechanics of the extracellular matrixR01HL066030 · NHLBI · MAYO CLINIC COLL OF MEDICINE, ROCHESTER · PI FERNANDEZ, JULIO M · 2001 to 2013
$5.0M
NHLBI NIH HHS HL61228NHLBI NIH HHS HL66030NHLBI NIH HHS R01 HL061228NHLBI NIH HHS R01 HL066030
6 · The paper itself

Abstract

Photochemical uncaging techniques use light to release active molecules from otherwise inert compounds. Here we expand this class of techniques by demonstrating the mechanical uncaging of a reactive species within a single protein. We proved this novel technique by capturing the regiospecific reaction between a thiol and a vicinal disulfide bond. We designed a protein that includes a caged cysteine and a buried disulfide. The mechanical unfolding of this protein in the presence of an external nucleophile frees the single reactive cysteine residue, which now can cleave the target disulfide via a nucleophilic attack on either one of its two sulfur atoms. This produces two different and competing reaction pathways. We used single-molecule force spectroscopy to monitor the cleavage of the disulfides, which extends the polypeptide by a magnitude unambiguously associated with each reaction pathway. This allowed us to measure, for the first time, the kinetics of disulfide-bond isomerization in a protein.

Indexed as

CysteineDisulfidesIsomerismKineticsMicroscopy, Atomic ForceOxidation-ReductionProteinsProtein UnfoldingSulfhydryl CompoundsCysteineDisulfidesProteinsSulfhydryl Compounds

Identifiers

PMID22024885
PMCPMC3205468

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.