Cited by 144Mass Spectrometry Techniques and ApplicationsProtein Structure and DynamicsHeat shock proteins research

Allosteric mechanisms can be distinguished using structural mass spectrometry

Open access
Dyachenko, Andrey, Gruber, Ranit, Shimon, Liat, Horovitz, Amnon, Sharon, Michal·2013·Proceedings of the National Academy of Sciences

Abstract

The activity of many proteins, including metabolic enzymes, molecular machines, and ion channels, is often regulated by conformational changes that are induced or stabilized by ligand binding. In cases of multimeric proteins, such allosteric regulation has often been described by the concerted Monod-Wyman-Changeux and sequential Koshland-Némethy-Filmer classic models of cooperativity. Despite the important functional implications of the mechanism of cooperativity, it has been impossible in many cases to distinguish between these various allosteric models using ensemble measurements of ligand binding in bulk protein solutions. Here, we demonstrate that structural MS offers a way to break this impasse by providing the full distribution of ligand-bound states of a protein complex. Given this distribution, it is possible to determine all the binding constants of a ligand to a highly multimeric cooperative system, and thereby infer its allosteric mechanism. Our approach to the dissection of allosteric mechanisms relies on advances in MS--which provide the required resolution of ligand-bound states--and in data analysis. We validated our approach using the well-characterized Escherichia coli chaperone GroEL, a double-heptameric ring containing 14 ATP binding sites, which has become a paradigm for molecular machines. The values of the 14 binding constants of ATP to GroEL were determined, and the ATP-loading pathway of the chaperone was characterized. The methodology and analyses presented here are directly applicable to numerous other cooperative systems and are therefore expected to promote further research on allosteric systems.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1073/pnas.1302395110

Cites

29 of 29 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • The ATP-promoted allosteric transitions of the homo-heptameric rings of GroEL are concerted.

    “Results showed that the ATP-promoted allosteric transitions of the homo-heptameric rings of GroEL are concerted (Dyachenko et al., 2013).”

    From Allostery in Its Many Disguises: From Theory to Applications (2019) · cites this paper as Dyachenko et al., 2013

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Dyachenko, A., Gruber, R., Shimon, L., Horovitz, A., & Sharon, M.
Affiliations
  • Weizmann Institute of Science (IL)
  • Departments of aBiological Chemistry and
Venue
Proceedings of the National Academy of Sciences
Published
2013-04-15
Volume
110
Issue
18
Pages
7235-7239
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2092848900
Cited by
144
References
29
Citations by year
2026: 4 · 2025: 6 · 2024: 5 · 2023: 3 · 2022: 10 · 2021: 12 · 2020: 11 · 2019: 10 · 2018: 17 · 2017: 10 · 2016: 17 · 2015: 14 · 2014: 13 · 2013: 12
FWCI
8.37
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Physical Sciences › Chemistry › Spectroscopy › Mass Spectrometry Techniques and Applications
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Structure and Dynamics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Heat shock proteins research
Keywords
allosteric regulation, structural mass spectrometry, ligand binding cooperativity, Monod-Wyman-Changeux model, multimeric proteins, ATP binding, GroEL, molecular chaperones, molecular machines
MeSH terms
Adenosine Triphosphate, Allosteric Regulation, Escherichia coli, Protein Binding, Mass Spectrometry, Chaperonin 60

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review