Evidence map›Paper›PMID 12134089›Full record

ArticleMolecular biology of the cell2002

Ligand-independent dimer formation of epidermal growth factor receptor (EGFR) is a step separable from ligand-induced EGFR signaling.

Xiaochun Yu, Kailash D Sharma, Tsuyoshi Takahashi, Ryo Iwamoto, Eisuke Mekada

Abstract read
In one paragraph

Article in Molecular biology of the cell, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 100 papers.

0numbers the graph read from it
0cells of the map it votes in
100citing papers in PubMed
4.1field-weighted citation impact, top 5% 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

100 citing papers in PubMed, 221 citations in OpenAlex.

  1. Article
  2. Ligand regulation and function of preformed EGFR dimers.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  3. Article
  4. Article
  5. EGFR: New Insights on Its Activation and Mutation in Tumor and Tumor Immunotherapy.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025
    Review
  6. Review
  7. An Agrin-YAP/TAZ Rigidity Sensing Module Drives EGFR-Addicted Lung Tumorigenesis.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025
    Article
  8. Review
  9. Cancer and Secretomes: HLA-G and Cancer Puzzle.Advances in experimental medicine and biology · 2025
    Review
  10. Article
  11. Review
  12. ErbBs in Lens Cell Fibrosis and Secondary Cataract.Investigative ophthalmology & visual science · 2023
    Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article

40 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 2 institutions in 1 country.

Xiaochun YuInstitute of Life Science, Kurume University, Kurume, Fukuoka 839-0861, Japan.
Kailash D Sharma
Tsuyoshi Takahashi
Ryo Iwamoto
Eisuke Mekada
The University of Osaka · JPKurume University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Dimerization and phosphorylation of the epidermal growth factor (EGF) receptor (EGFR) are the initial and essential events of EGF-induced signal transduction. However, the mechanism by which EGFR ligands induce dimerization and phosphorylation is not fully understood. Here, we demonstrate that EGFRs can form dimers on the cell surface independent of ligand binding. However, a chimeric receptor, comprising the extracellular and transmembrane domains of EGFR and the cytoplasmic domain of the erythropoietin receptor (EpoR), did not form a dimer in the absence of ligands, suggesting that the cytoplasmic domain of EGFR is important for predimer formation. Analysis of deletion mutants of EGFR showed that the region between (835)Ala and (918)Asp of the EGFR cytoplasmic domain is required for EGFR predimer formation. In contrast to wild-type EGFR ligands, a mutant form of heparin-binding EGF-like growth factor (HB2) did not induce dimerization of the EGFR-EpoR chimeric receptor and therefore failed to activate the chimeric receptor. However, when the dimerization was induced by a monoclonal antibody to EGFR, HB2 could activate the chimeric receptor. These results indicate that EGFR can form a ligand-independent inactive dimer and that receptor dimerization and activation are mechanistically distinct and separable events.

Indexed as

AnimalsAntibodiesCell LineCross-Linking ReagentsDimerizationEpidermal Growth FactorErbB ReceptorsGenes, ReporterHeparin-binding EGF-like Growth FactorHumansIntercellular Signaling Peptides and ProteinsLigandsReceptors, ErythropoietinRecombinant Fusion ProteinsRecombinant ProteinsSignal Transduction3,3'-dithiobis(sulfosuccinimidyl propionate)AntibodiesCross-Linking ReagentsEpidermal Growth FactorErbB ReceptorsHBEGF protein, humanHeparin-binding EGF-like Growth FactorIntercellular Signaling Peptides and ProteinsLigandsReceptors, ErythropoietinRecombinant Fusion ProteinsRecombinant ProteinsSuccinimides

Identifiers

PMID12134089
PMCPMC117333
OpenAlexW2102273931

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.