Cited by 156Receptor Mechanisms and SignalingCytokine Signaling Pathways and InteractionsProtein Kinase Regulation and GTPase Signaling

The fourth immunoglobulin domain of the stem cell factor receptor couples ligand binding to signal transduction

Open access
Blechman, Janna M, Lev, Sima, Barg, Jacob, Eisenstein, Miriam, Vaks, Baruch, Vogel, Zvi, Givol, David, Yarden, Yosef·1995·Cell

Abstract

Receptor dimerization is ubiquitous to the action of all receptor tyrosine kinases, and in the case of dimeric ligands, such as the stem cell factor (SCF), it was attributed to ligand bivalency. However, by using a dimerization-inhibitory monoclonal antibody to the SCF receptor, we confined a putative dimerization site to the nonstandard fourth immunoglobulin-like domain of the receptor. Deletion of this domain not only abolished ligand-induced dimerization and completely inhibited signal transduction, but also provided insights into the mechanism of the coupling of ligand binding to dimer formation. These results identify an intrinsic receptor dimerization site and suggest that similar sites may exist in other receptors.

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Crossref · 10.1016/0092-8674(95)90455-7

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36 of 36 references verified0 citation errors · 0 not checkable

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  • Both mutations affect the fourth Ig domain of KIT, and mutations in this motif near the dimerization site have been shown to result in accelerated ligand dissociation and reduced downstream signal transduction events.

    “Both mutations affect the fourth Ig domain of KIT, and mutations in this motif near the dimerization site have been shown to result in accelerated ligand dissociation and reduced downstream signal transduction events (68).”

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Authors
Blechman, J. M., Lev, S., Barg, J., Eisenstein, M., Vaks, B., Vogel, Z., Givol, D., & Yarden, Y.
Affiliations
  • Weizmann Institute of Science (IL)
  • Tel Aviv University (IL)
Venue
Cell
Publisher
Elsevier BV
Published
1995-01
Volume
80
Issue
1
Pages
103-113
ISSN
0092-8674 (ISSN-L)
OpenAlex
W2054154416
Cited by
156
References
37
Citations by year
2025: 2 · 2024: 1 · 2023: 1 · 2021: 1 · 2018: 2 · 2017: 3 · 2016: 1 · 2015: 1 · 2014: 6 · 2013: 5 · 2012: 1
FWCI
6.19
Type
journal article
Language
en
Open access
Locations
  • Cell (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
Israel Cancer Research Fund
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Receptor Mechanisms and Signaling
  • Health Sciences › Medicine › Oncology › Cytokine Signaling Pathways and Interactions
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Kinase Regulation and GTPase Signaling
Keywords
CD117, receptor dimerization, ligand binding, signal transduction, receptor tyrosine kinase, domain deletion
MeSH terms
Animals, Antibodies, Monoclonal, Base Sequence, Binding Sites, Cells, Cultured, Enzyme Activation, Humans, Ligands, Models, Molecular, Molecular Sequence Data, Mutation, Proto-Oncogene Proteins, Solubility, Signal Transduction, Receptors, Colony-Stimulating Factor, Hematopoietic Cell Growth Factors, Epitope Mapping, Proto-Oncogene Proteins c-kit, Stem Cell Factor, Receptor Protein-Tyrosine Kinases, Mice

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