Evidence map›Paper›PMID 28263956›Full record

ArticleNature cell biology2017

SHANK proteins limit integrin activation by directly interacting with Rap1 and R-Ras.

Johanna Lilja, Thomas Zacharchenko, Maria Georgiadou, Guillaume Jacquemet, Nicola De Franceschi, Emilia Peuhu, Hellyeh Hamidi, Jeroen Pouwels, Victoria Martens, Fatemeh Hassani Nia and 5 more

Open access · greenAbstract read
In one paragraph

Article in Nature cell biology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 76 papers.

0numbers the graph read from it
0cells of the map it votes in
76citing papers in PubMed
11.2field-weighted citation impact, top 1% 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

76 citing papers in PubMed, 134 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Divergent Functions of Rap1A and Rap1B in Endothelial Biology and Disease.International journal of molecular sciences · 2025
    Review
  6. Mechanochemistry: Fundamental Principles and Applications.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025
    Review
  7. Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Spatial Mechano-Signaling Regulation of GTPases through Non-Degradative Ubiquitination.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2023
    Article
  19. Article
  20. Article

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

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

15 authors at 4 institutions in 3 countries.

Johanna Lilja *Turku Centre for Biotechnology, University of Turku, FIN-20520 Turku, Finland.
Thomas Zacharchenko *University of Liverpool, Liverpool, United Kingdom.
Maria GeorgiadouTurku Centre for Biotechnology, University of Turku, FIN-20520 Turku, Finland.
Guillaume JacquemetTurku Centre for Biotechnology, University of Turku, FIN-20520 Turku, Finland.
Nicola De FranceschiTurku Centre for Biotechnology, University of Turku, FIN-20520 Turku, Finland.
Emilia PeuhuTurku Centre for Biotechnology, University of Turku, FIN-20520 Turku, Finland.
Hellyeh HamidiTurku Centre for Biotechnology, University of Turku, FIN-20520 Turku, Finland.
Jeroen PouwelsTurku Centre for Biotechnology, University of Turku, FIN-20520 Turku, Finland.
Victoria MartensInstitute for Human Genetics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
Fatemeh Hassani NiaInstitute for Human Genetics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
Malte BeifussInstitute for Human Genetics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
Tobias BoeckersInstitute for Anatomy and Cell Biology, University of Ulm, Ulm, Germany.
Hans-Juergen KreienkampInstitute for Human Genetics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
Igor L BarsukovUniversity of Liverpool, Liverpool, United Kingdom.
Johanna IvaskaTurku Centre for Biotechnology, University of Turku, FIN-20520 Turku, Finland.
University of Turku · FIUniversität Hamburg · DEUniversity of Liverpool · GBUniversität Ulm · DE

Funding

Biotechnology and Biological Sciences Research CouncilEuropean Research Council 615258
6 · The paper itself

Abstract

SHANK3, a synaptic scaffold protein and actin regulator, is widely expressed outside of the central nervous system with predominantly unknown function. Solving the structure of the SHANK3 N-terminal region revealed that the SPN domain is an unexpected Ras-association domain with high affinity for GTP-bound Ras and Rap G-proteins. The role of Rap1 in integrin activation is well established but the mechanisms to antagonize it remain largely unknown. Here, we show that SHANK1 and SHANK3 act as integrin activation inhibitors by sequestering active Rap1 and R-Ras via the SPN domain and thus limiting their bioavailability at the plasma membrane. Consistently, SHANK3 silencing triggers increased plasma membrane Rap1 activity, cell spreading, migration and invasion. Autism-related mutations within the SHANK3 SPN domain (R12C and L68P) disrupt G-protein interaction and fail to counteract integrin activation along the Rap1-RIAM-talin axis in cancer cells and neurons. Altogether, we establish SHANKs as critical regulators of G-protein signalling and integrin-dependent processes.

Indexed as

Amino Acid SequenceAnimalsCell AdhesionCell LineCell MovementCell Surface ExtensionsFemaleFlow CytometryIntegrin beta1Mice, Inbred C57BLModels, BiologicalMutationNerve Tissue ProteinsPolymerase Chain ReactionProtein BindingProtein DomainsIntegrin beta1Nerve Tissue Proteinsrap1 GTP-Binding Proteinsras ProteinsRRAS protein, humanSHARPIN protein, humanTalinUbiquitins

Identifiers

PMID28263956
PMCPMC5386136
OpenAlexW2592683674

What OpenQuestion holds

Textmetadata
LicenceTDM
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.