Evidence map›Paper›PMID 17097105›Full record

ArticleJournal of molecular biology2007

The folding pathway of T4 lysozyme: an on-pathway hidden folding intermediate.

Hidenori Kato, Ngoc Diep Vu, Hanqiao Feng, Zheng Zhou, Yawen Bai

Open access · greenAbstract read
In one paragraph

Article in Journal of molecular biology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
1.5field-weighted citation impact, top 19% 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

19 citing papers in PubMed, 38 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. How internal cavities destabilize a protein.Proceedings of the National Academy of Sciences of the United States of America · 2019
    Article
  6. Article
  7. Article
  8. Article
  9. Folding of a large protein at high structural resolution.Proceedings of the National Academy of Sciences of the United States of America · 2013
    Article
  10. Article
  11. High-pressure EPR reveals conformational equilibria and volumetric properties of spin-labeled proteins.Proceedings of the National Academy of Sciences of the United States of America · 2011
    Article
  12. Lessons from the lysozyme of phage T4.Protein science : a publication of the Protein Society · 2010
    Review
  13. Article
  14. Article
  15. Article
  16. Kinetic barriers and the role of topology in protein and RNA folding.Protein science : a publication of the Protein Society · 2008
    Review
  17. Article
  18. Protein folding and misfolding: mechanism and principles.Quarterly reviews of biophysics · 2007
    Review
  19. 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

5 authors at 2 institutions in 1 country.

Hidenori KatoLaboratory of Biochemistry, Center for Cancer Research, National Cancer Institute, Building 37, Room 6114E, Bethesda, MD 20892, USA.
Ngoc Diep Vu
Hanqiao Feng
Zheng Zhou
Yawen Bai
National Cancer Institute · USCenter for Cancer Research · US

Funding

Protein Folding MechanismZ01BC010276 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI BAI, YAWEN · 1998 to 2008
$724k
Intramural NIH HHS Z01 BC010276
6 · The paper itself

Abstract

T4 lysozyme has two easily distinguishable but energetically coupled domains: the N and C-terminal domains. In earlier studies, an amide hydrogen/deuterium exchange pulse-labeling experiment detected a stable submillisecond intermediate that accumulates before the rate-limiting transition state. It involves the formation of structures in both the N and C-terminal regions. However, a native-state hydrogen exchange experiment subsequently detected an equilibrium intermediate that only involves the formation of the C-terminal domain. Here, using stopped-flow circular dichroism and fluorescence, amide hydrogen exchange-folding competition, and protein engineering methods, we re-examined the folding pathway of T4-lysozyme. We found no evidence for the existence of a stable folding intermediate before the rate-limiting transition state at neutral pH. In addition, using native-state hydrogen exchange-directed protein engineering, we created a mimic of the equilibrium intermediate. We found that the intermediate mimic folds with the same rate as the wild-type protein, suggesting that the equilibrium intermediate is an on-pathway intermediate that exists after the rate-limiting transition state.

Indexed as

Protein FoldingBacteriophage T4Circular DichroismFluorescenceHydrogenHydrogen-Ion ConcentrationKineticsMuramidaseMutant ProteinsProtein EngineeringProtein Structure, SecondaryProtein Structure, TertiaryTemperatureTime FactorsHydrogenMuramidaseMutant Proteins

Identifiers

PMID17097105
PMCPMC2494531
OpenAlexW2128344906

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.