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Bioinformatics Resources for the Study of Glycan-Mediated Protein Interactions
Published on: January 20, 2022
Galectin-glycan lattices regulate cell-surface glycoprotein organization and signalling
1Department of Pathology and Laboratory Medicine, UCLA School of Medicine, Los Angeles, CA 90095, USA.
Biochemical Society Transactions
|November 22, 2008
Summary
Soluble galectins form complexes with cell surface glycoproteins, creating lattices that organize cell membranes and regulate signaling. These interactions are vital for various cellular functions and glycoprotein receptor dynamics.
Area of Science:
- Cell Biology
- Glycobiology
- Immunology
Background:
- Galectins are carbohydrate-binding proteins involved in diverse cellular processes.
- Glycoprotein-receptor interactions at the cell surface are crucial for cell communication and organization.
- Galectin-glycan lattices play a role in organizing plasma membrane domains and regulating signaling pathways.
Purpose of the Study:
- To review recent evidence on the physiological and cellular functions regulated by galectin-glycoprotein interactions.
- To highlight the role of galectin-glycan lattices in cell surface organization and signaling.
- To discuss the impact of galectin-glycan lattices on receptor trafficking and signaling duration.
Main Methods:
- Review of in vitro and in vivo studies.
- Analysis of galectin-glycoprotein interactions.
- Examination of galectin-glycan lattice formation and its consequences.
Main Results:
- Galectin-glycan lattices organize glycoprotein assemblies on the cell surface.
- These lattices are critical for plasma membrane domain organization (e.g., lipid rafts) and glycoprotein targeting.
- Galectin-glycan lattices regulate the signaling threshold of cell-surface glycoproteins and modulate receptor endocytosis, affecting signaling duration.
Conclusions:
- Galectin-glycoprotein interactions are fundamental for organizing cell surface architecture and function.
- Galectin-glycan lattices are key regulators of cell signaling and receptor dynamics.
- These interactions have significant implications for various physiological processes.
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