Related Experiment Video
Updated: May 13, 2026

09:04
Recording Gap Junction Current from Xenopus Oocytes
Published on: January 21, 2022
A history of gap junction structure: hexagonal arrays to atomic resolution
Rosslyn Grosely1, Paul L Sorgen
1Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68198-5870, USA.
Cell Communication & Adhesion
|March 9, 2013
Summary
Gap junctions form intercellular pathways crucial for cell signaling, growth, and development. Recent atomic resolution structures reveal detailed channel architecture, advancing our understanding of gap junction regulation.
Area of Science:
- Cell Biology
- Structural Biology
- Biophysics
Background:
- Gap junctions are essential intercellular communication channels.
- They facilitate signal propagation, cell growth, and development.
- Understanding their structure is key to understanding their function.
Observation:
- Initial studies observed a hexagonal nexus connecting cell membranes.
- Technological advancements over 50 years enabled higher resolution.
- Atomic resolution structures are now available.
Findings:
- Detailed channel architecture has been elucidated.
- Cytoplasmic domains regulating gap junctions are identified.
- Mechanisms governing gap junction regulation are better defined.
Implications:
- Provides a foundation for understanding cellular coordination.
- Informs research on diseases linked to gap junction dysfunction.
- Enables targeted therapeutic strategies for cell communication disorders.
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