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.

Year introduced: 1994

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Tree Number(s): A11.284.149.165.420.471

MeSH Unique ID: D017629

Entry Terms:

• Gap Junction
• Junction, Gap
• Junctions, Gap

Previous Indexing:

• Intercellular Junctions (1971-1993)

See Also:

• Connexins

All MeSH Categories
Anatomy Category
Cells
Cellular Structures
Cell Membrane
Cell Membrane Structures
Intercellular Junctions
Gap Junctions
Electrical Synapses