Evidence map›Paper›PMID 24191053›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2013

Folding of a large protein at high structural resolution.

Benjamin T Walters, Leland Mayne, James R Hinshaw, Tobin R Sosnick, S Walter Englander

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 59 papers.

0numbers the graph read from it
0cells of the map it votes in
59citing papers in PubMed
3.6field-weighted citation impact, top 7% 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

59 citing papers in PubMed, 100 citations in OpenAlex.

  1. Adoption patterns of anti-vascular endothelial growth factor therapies in retinal disease.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2026
    Article
  2. Article
  3. Article
  4. State-of-the-Art and Future Directions in Structural Proteomics.Molecular & cellular proteomics : MCP · 2025
    Review
  5. Review
  6. Article
  7. Article
  8. The importance of the location of the N-terminus in successful protein folding in vivo and in vitro.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Article
  19. Review
  20. 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 3 institutions in 1 country.

Benjamin T WaltersJohnson Research Foundation, Department of Biochemistry and Biophysics, and Graduate Group in Biochemistry and Molecular Biophysics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104.
Leland Mayne
James R Hinshaw
Tobin R Sosnick
S Walter Englander
Johnson Foundation · USUniversity of Chicago · USUniversity of Pennsylvania · US

Funding

X-RAY STUDIES OF NEUROFIBRILLARY TANGLES IN ALZHEIMER'S DISEASE BRAIN TISSUEP41RR008630 · NCRR · ILLINOIS INSTITUTE OF TECHNOLOGY · PI IRVING, THOMAS C · 2001 to 2011
$14.4M
Time resolved SAXS studies on the RP2/Arl3 complex pp.484-485P41GM103622 · NIGMS · ILLINOIS INSTITUTE OF TECHNOLOGY · PI IRVING, THOMAS C · 2012 to 2020
$11.9M
Kinetic studies of protein foldingR01GM055694 · NIGMS · UNIVERSITY OF CHICAGO · PI SOSNICK, TOBIN R · 2001 to 2022
$7.6M
Protein structure and function by hydrogen exchange mass spectrometry analysisR01GM031847 · NIGMS · UNIVERSITY OF PENNSYLVANIA · PI ENGLANDER, S. WALTER · 1985 to 2017
$6.3M
STRUCTURAL BIOLOGY TRAINING PROGRAMT32GM008275 · NIGMS · UNIVERSITY OF PENNSYLVANIA · PI WAND, A. JOSHUA · 1988 to 2018
$6.0M
NCRR NIH HHS 2P41RR008630-18NCRR NIH HHS P41 RR008630NIGMS NIH HHS 9 P41 GM103622-18NIGMS NIH HHS GM08275NIGMS NIH HHS P41 GM103622NIGMS NIH HHS R01 GM031847NIGMS NIH HHS R01 GM055694NIGMS NIH HHS T32 GM008275
6 · The paper itself

Abstract

Kinetic folding of the large two-domain maltose binding protein (MBP; 370 residues) was studied at high structural resolution by an advanced hydrogen-exchange pulse-labeling mass-spectrometry method (HX MS). Dilution into folding conditions initiates a fast molecular collapse into a polyglobular conformation (<20 ms), determined by various methods including small angle X-ray scattering. The compaction produces a structurally heterogeneous state with widespread low-level HX protection and spectroscopic signals that match the equilibrium melting posttransition-state baseline. In a much slower step (7-s time constant), all of the MBP molecules, although initially heterogeneously structured, form the same distinct helix plus sheet folding intermediate with the same time constant. The intermediate is composed of segments that are distant in the MBP sequence but adjacent in the native protein where they close the longest residue-to-residue contact. Segments that are most HX protected in the early molecular collapse do not contribute to the initial intermediate, whereas the segments that do participate are among the less protected. The 7-s intermediate persists through the rest of the folding process. It contains the sites of three previously reported destabilizing mutations that greatly slow folding. These results indicate that the intermediate is an obligatory step on the MBP folding pathway. MBP then folds to the native state on a longer time scale (~100 s), suggestively in more than one step, the first of which forms structure adjacent to the 7-s intermediate. These results add a large protein to the list of proteins known to fold through distinct native-like intermediates in distinct pathways.

Indexed as

Models, MolecularProtein ConformationProtein FoldingEscherichia coliMaltose-Binding ProteinsMass SpectrometryProtein DenaturationScattering, Small AngleMaltose-Binding Proteinsdenatured state ensembleHDXprotein collapseSAXS

Identifiers

PMID24191053
PMCPMC3839771
OpenAlexW2021903435

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.