Evidence map›Paper›PMID 21454754›Full record

ArticleScience (New York, N.Y.)2011

Proteoglycan-specific molecular switch for RPTPσ clustering and neuronal extension.

Charlotte H Coles, Yingjie Shen, Alan P Tenney, Christian Siebold, Geoffrey C Sutton, Weixian Lu, John T Gallagher, E Yvonne Jones, John G Flanagan, A Radu Aricescu

Open access · greenAbstract read
In one paragraph

Article in Science (New York, N.Y.), 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 182 papers.

0numbers the graph read from it
0cells of the map it votes in
182citing papers in PubMed
12.0field-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

182 citing papers in PubMed, 313 citations in OpenAlex.

  1. Article
  2. Structure-Based Engineering for PTPσ-Targeted Therapeutic Development.International journal of molecular sciences · 2026
    Review
  3. Review
  4. Review
  5. Article
  6. Article
  7. Review
  8. Review
  9. Review
  10. Neuronal Axon Generation/Regeneration Regulated by Sulfated Glycans.Advances in experimental medicine and biology · 2026
    Review
  11. Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. Article
  20. Article

122 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

10 authors at 2 institutions in 3 countries.

Charlotte H ColesDivision of Structural Biology, Wellcome Trust Centre for Human Genetics, University of Oxford, Roosevelt Drive, Oxford, OX3 7BN, UK.
Yingjie Shen
Alan P Tenney
Christian Siebold
Geoffrey C Sutton
Weixian Lu
John T Gallagher
E Yvonne Jones
John G Flanagan
A Radu Aricescu
Centre for Human Genetics · GBHarvard University · US

Funding

CELL-CELL SIGNALING IN VISUAL DEVELOPMENTR01EY011559 · NEI · HARVARD UNIVERSITY (MEDICAL SCHOOL) · PI FLANAGAN, JOHN G · 1996 to 2016
$6.9M
Identification and Function of Receptors and LigandsR37HD029417 · NICHD · HARVARD UNIVERSITY (MEDICAL SCHOOL) · PI FLANAGAN, JOHN G · 2002 to 2011
$4.0M
FUNCTION OF RECEPTOR TYROSINE KINASES AND THEIR LIGANDSR01HD029417 · NICHD · HARVARD UNIVERSITY (MEDICAL SCHOOL) · PI FLANAGAN, JOHN G · 1992 to 2001
$657k
Cancer Research UK 10976Medical Research Council G0700232Medical Research Council G0900084NEI NIH HHS EY11559NEI NIH HHS R01 EY011559NICHD NIH HHS HD29417NICHD NIH HHS R01 HD029417NICHD NIH HHS R37 HD029417Wellcome Trust 090532
6 · The paper itself

Abstract

Heparan and chondroitin sulfate proteoglycans (HSPGs and CSPGs, respectively) regulate numerous cell surface signaling events, with typically opposite effects on cell function. CSPGs inhibit nerve regeneration through receptor protein tyrosine phosphatase sigma (RPTPσ). Here we report that RPTPσ acts bimodally in sensory neuron extension, mediating CSPG inhibition and HSPG growth promotion. Crystallographic analyses of a shared HSPG-CSPG binding site reveal a conformational plasticity that can accommodate diverse glycosaminoglycans with comparable affinities. Heparan sulfate and analogs induced RPTPσ ectodomain oligomerization in solution, which was inhibited by chondroitin sulfate. RPTPσ and HSPGs colocalize in puncta on sensory neurons in culture, whereas CSPGs occupy the extracellular matrix. These results lead to a model where proteoglycans can exert opposing effects on neuronal extension by competing to control the oligomerization of a common receptor.

Indexed as

Amino Acid SequenceAnimalsAxonsBinding SitesCell MembraneCells, CulturedChondroitin Sulfate ProteoglycansChondroitin SulfatesCrystallography, X-RayExtracellular MatrixGanglia, SpinalGlypicansGrowth ConesHeparan SulfateHeparan Sulfate ProteoglycansHumansChondroitin Sulfate ProteoglycansChondroitin SulfatesGlypicansHeparan SulfateHeparan Sulfate ProteoglycansNeurocanReceptor-Like Protein Tyrosine Phosphatases, Class 2

Identifiers

PMID21454754
PMCPMC3154093
OpenAlexW2140982760

What OpenQuestion holds

Textmetadata
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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.