Evidence map›Paper›PMID 20670939›Full record

ArticleThe Journal of biological chemistry2010

Modulation of integrin activation by an entropic spring in the {beta}-knee.

Benoit J Smagghe, Po-Ssu Huang, Yih-En Andrew Ban, David Baker, Timothy A Springer

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
2.4field-weighted citation impact, top 11% 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

28 citing papers in PubMed, 35 citations in OpenAlex.

  1. Contributions of the individual domains of αCytoskeleton (Hoboken, N.J.) · 2024
    Article
  2. Article
  3. Family-wide analysis of integrin structures predicted by AlphaFold2.bioRxiv : the preprint server for biology · 2023
    Article
  4. Family-wide analysis of integrin structures predicted by AlphaFold2.Computational and structural biotechnology journal · 2023
    Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Low-affinity binding inMolecular biology of the cell · 2017
    Article
  11. Article
  12. Structural flexibility at a major conserved antibody target on hepatitis C virus E2 antigen.Proceedings of the National Academy of Sciences of the United States of America · 2016
    Article
  13. Protein stability: a crystallographer's perspective.Acta crystallographica. Section F, Structural biology communications · 2016
    Review
  14. Review
  15. Article
  16. Article
  17. Article
  18. Complete integrin headpiece opening in eight steps.The Journal of cell biology · 2013
    Article
  19. Article
  20. Review
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.

Benoit J SmaggheFrom the Immune Disease Institute, Children's Hospital Boston, and the Department of Pathology, Harvard Medical School, Boston, Massachusetts 02115.
Po-Ssu HuangDepartment of Biochemistry and Howard Hughes Medical Institute, University of Washington, Seattle, Washington 98195.
Yih-En Andrew BanDepartment of Biochemistry and Howard Hughes Medical Institute, University of Washington, Seattle, Washington 98195.
David BakerDepartment of Biochemistry and Howard Hughes Medical Institute, University of Washington, Seattle, Washington 98195.
Timothy A SpringerFrom the Immune Disease Institute, Children's Hospital Boston, and the Department of Pathology, Harvard Medical School, Boston, Massachusetts 02115. Electronic address: springer@idi.harvard.edu.
Harvard University · USUniversity of Washington · USHoward Hughes Medical Institute · US

Funding

STRUCTURE OF INTEGRINS AND YWTD BETA PROPELLER DOMAINSP01HL048675 · NHLBI · IMMUNE DISEASE INSTITUTE, INC. · PI SPRINGER, TIMOTHY A · 1992 to 2009
$20.9M
NHLBI NIH HHS HL-48675NHLBI NIH HHS P01 HL048675
6 · The paper itself

Abstract

We show that the length of a loop in the β-knee, between the first and second cysteines (C1-C2) in integrin EGF-like (I-EGF) domain 2, modulates integrin activation. Three independent sets of mutants, including swaps among different integrin β-subunits, show that C1-C2 loop lengths of 12 and longer favor the low affinity state and masking of ligand-induced binding site (LIBS) epitopes. Shortening length from 12 to 4 residues progressively increases ligand binding and LIBS epitope exposure. Compared with length, the loop sequence had a smaller effect, which was ascribable to stabilizing loop conformation, and not interactions with the α-subunit. The data together with structural calculations support the concept that the C1-C2 loop is an entropic spring and an emerging theme that disordered regions can regulate allostery. Diversity in the length of this loop may have evolved among integrin β-subunits to adjust the equilibrium between the bent and extended conformations at different set points.

Indexed as

Epidermal Growth FactorModels, MolecularHumansIntegrin beta ChainsProtein Structure, SecondaryProtein Structure, TertiaryEpidermal Growth FactorIntegrin beta Chains

Identifiers

PMID20670939
PMCPMC2963379
OpenAlexW2133845340

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.