Evidence map›Paper›PMID 17154539›Full record

ArticleBiochemistry2006

Importance of force linkage in mechanochemistry of adhesion receptors.

Nathan S Astrof, Azucena Salas, Motomu Shimaoka, JianFeng Chen, Timothy A Springer

Open access · greenAbstract read
In one paragraph

Article in Biochemistry, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 71 papers.

0numbers the graph read from it
0cells of the map it votes in
71citing papers in PubMed
6.2field-weighted citation impact, top 3% 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

71 citing papers in PubMed, 139 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Topology of molecular deformations induces triphasic catch bonding in selectin-ligand bonds.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  5. Article
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  8. Review
  9. Article
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  13. The principles of directed cell migration.Nature reviews. Molecular cell biology · 2021
    Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Mechanical forces in the immune system.Nature reviews. Immunology · 2017
    Review
  20. Integrin extension enables ultrasensitive regulation by cytoskeletal force.Proceedings of the National Academy of Sciences of the United States of America · 2017
    Article

11 more citing papers are in PubMed but not listed here.

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 1 institution in 1 country.

Nathan S AstrofThe CBR Institute for Biomedical Research, Department of Anesthesia and Department of Pathology, Harvard Medical School, Boston, Massachusetts 02115, USA.
Azucena Salas
Motomu Shimaoka
JianFeng Chen
Timothy A Springer
Harvard University · 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 HL48675NHLBI NIH HHS P01 HL048675
6 · The paper itself

Abstract

The alpha subunit-inserted (I) domain of integrin alphaLbeta2 [lymphocyte function-associated antigen-1 (LFA-1)] binds to intercellular adhesion molecule-1 (ICAM-1). The C- and N-termini of the alpha I domain are near one another on the "lower" face, opposite the metal ion-dependent adhesion site (MIDAS) on the "upper face". In conversion to the open alpha I domain conformation, a 7 A downward, axial displacement of C-terminal helix alpha7 is allosterically linked to rearrangement of the MIDAS into its high-affinity conformation. Here, we test the hypothesis that when an applied force is appropriately linked to conformational change, the conformational change can stabilize adhesive interactions that resist the applied force. Integrin alpha I domains were anchored to the cell surface through their C- or N-termini using type I or II transmembrane domains, respectively. C-terminal but not N-terminal anchorage robustly supported cell rolling on ICAM-1 substrates in shear flow. In contrast, when the alphaL I domain was mutationally stabilized in the open conformation with a disulfide bond, it mediated comparable levels of firm adhesion with type I and type II membrane anchors. To exclude other effects as the source of differential adhesion, these results were replicated using alpha I domains conjugated through the N- or C-terminus to polystyrene microspheres. Our results demonstrate a mechanical feedback system for regulating the strength of an adhesive bond. A review of crystal structures of integrin alpha and beta subunit I domains and selectins in high- and low-affinity conformations demonstrates a common mechanochemical design in which biologically applied tensile force stabilizes the more extended, high-affinity conformation.

Indexed as

Cell AdhesionHumansIntegrin alpha1Integrin beta ChainsIntercellular Adhesion Molecule-1K562 CellsLeukocyte RollingLymphocyte Function-Associated Antigen-1Membrane GlycoproteinsMembrane ProteinsModels, MolecularPlatelet Glycoprotein GPIb-IX ComplexProtein Structure, SecondaryProtein Structure, Tertiaryadhesion receptorIntegrin alpha1Integrin beta ChainsIntercellular Adhesion Molecule-1Lymphocyte Function-Associated Antigen-1Membrane GlycoproteinsMembrane ProteinsPlatelet Glycoprotein GPIb-IX Complex

Identifiers

PMID17154539
PMCPMC1766327
OpenAlexW2171797964

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.