Anatomy

Gap Junctions

Connections between cells which allow passage of small molecules and electric current. Gap junctions were first described anatomically as regions of close apposition between cells with a narrow (1-2 nm) gap between cell membranes. The variety in the properties of gap junctions is reflected in the number of CONNEXINS, the family of proteins which form the junctions.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

Connections between cells which allow passage of small molecules and electric current. Gap junctions were first described anatomically as regions of close apposition between cells with a narrow (1-2 nm) gap between cell membranes. The variety in the properties of gap junctions is reflected in the number of CONNEXINS, the family of proteins which form the junctions.

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Synonyms

3 entry terms
  • Gap Junction
  • Junction, Gap
  • Junctions, Gap

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Aspects Covered

14 allowable subheadings

Indexed with the subheadings chemistry, classification, drug effects, enzymology, genetics, immunology, metabolism, microbiology, parasitology, pathology, physiology, radiation effects, ultrastructure, virology.

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History Note

94

MeSH Record

Previous Indexing

  • Intercellular Junctions (1971-1993)

MeSH Hierarchy

Tree Number

  1. A11w.284w.149w.165.420.471w

AMA Style

References

  1. National Library of Medicine. Gap Junctions. Medical Subject Headings (MeSH). 2026. Unique ID D017629. http://id.nlm.nih.gov/mesh/2026/D017629
  2. Gap Junctions. In: Wikipedia. https://en.wikipedia.org/wiki/Gap_junction
  3. Gap Junctions. In: Wikidata. https://www.wikidata.org/wiki/Q232438