Evidence map›Paper›PMID 19208936›Full record

ArticlePhysical biology2009

What have we learned from the studies of two-state folders, and what are the unanswered questions about two-state protein folding?

Doug Barrick

Abstract read
In one paragraph

Article in Physical biology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing 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

16 citing papers in PubMed.

  1. Article
  2. Identification of an on-pathway intermediate illuminates the kinetic competition between protein folding and misfolding.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  3. Article
  4. Review
  5. Heterogeneity in the Folding of Villin Headpiece Subdomain HP36.The journal of physical chemistry. B · 2018
    Article
  6. Modulating long-range energetics via helix stabilization: A case study using T4 lysozyme.Protein science : a publication of the Protein Society · 2018
    Article
  7. Article
  8. How cooperative are protein folding and unfolding transitions?Protein science : a publication of the Protein Society · 2016
    Review
  9. Article
  10. Protein domain definition should allow for conditional disorder.Protein science : a publication of the Protein Society · 2013
    Article
  11. How long does it take to equilibrate the unfolded state of a protein?Protein science : a publication of the Protein Society · 2013
    Article
  12. Probing the origins of two-state folding.The Journal of chemical physics · 2013
    Article
  13. Reassessing the folding of the KIX domain: evidence for a two-state mechanism.Protein science : a publication of the Protein Society · 2012
    Article
  14. Article
  15. Article
  16. Protein folded states are kinetic hubs.Proceedings of the National Academy of Sciences of the United States of America · 2010
    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

1 author.

Doug BarrickT C Department of Biophysics, The Johns Hopkins University, 3400 N Charles St, Baltimore, MD 21218, USA. barrick@jhu.edu

Funding

REPEAT-PROTEINS;STABILITY, FOLDING KINETICS &EVOLUTIONR01GM068462 · NIGMS · JOHNS HOPKINS UNIVERSITY · PI BARRICK, DOUGLAS E. · 2005 to 2025
$6.3M
NIGMS NIH HHS R01 GM068462
6 · The paper itself

Abstract

Small proteins with globular structures often fold by simple all-or-none mechanisms, both in an equilibrium and a kinetic sense, despite the very large number of partly folded conformations available. This type of 'two-state' folding will be discussed in terms of experimental tests, underlying molecular mechanisms, and limits to two-state behavior. Factors that appear to be important for two-state folding include topology (sequence distance of contacts in the native structure), molecular cooperativity and local energy distribution. Because their local stability distributions and cooperativities can be dissected and analyzed separately from topological features, recent studies of the folding of symmetric proteins will be discussed as a means to better understand the origins of two-state folding.

Indexed as

Protein ConformationComputational BiologyKineticsProtein FoldingProteinsThermodynamicsProteins

Identifiers

PMID19208936
PMCPMC2822238

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.