Cell junction: Difference between revisions
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==Overview== | ==Overview== | ||
A '''cell junction''' is a structure within a [[Biological tissue|tissue]] of a [[multicellular]] [[organism]]. Cell junctions are especially abundant in [[Epithelium|epithelia]]l tissues. They consist of [[protein]] complexes and provide contact between neighbouring [[Cell (biology)|cell]]s, between a cell and the [[extracellular matrix]], or they | A '''cell junction''' is a structure within a [[Biological tissue|tissue]] of a [[multicellular]] [[organism]]. Cell junctions are especially abundant in [[Epithelium|epithelia]]l tissues. They consist of [[protein]] complexes and provide contact between neighbouring [[Cell (biology)|cell]]s, between a cell and the [[extracellular matrix]], or they build up the paracellular barrier of epithelia and control the [[paracellular transport]]. | ||
[[Image:Cell junction simplified.svg|thumb|400px|Simplified diagram of the main cell junctions]] | [[Image:Cell junction simplified.svg|thumb|400px|Simplified diagram of the main cell junctions]] | ||
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*[[Gap junction]]s | *[[Gap junction]]s | ||
*[[Tight junction]]s | *[[Tight junction]]s | ||
Invertebrates have several other types of specific junctions, for example [[Septate junctions]] or the [[CeAJ]] ([[C. elegans]] apical junction). | Invertebrates have several other types of specific junctions, for example [[Septate junctions]] or the [[CeAJ]] ([[C. elegans]] apical junction). | ||
Revision as of 15:39, 29 April 2009
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Overview
A cell junction is a structure within a tissue of a multicellular organism. Cell junctions are especially abundant in epithelial tissues. They consist of protein complexes and provide contact between neighbouring cells, between a cell and the extracellular matrix, or they build up the paracellular barrier of epithelia and control the paracellular transport.
In vertebrates, there are three major types of cell junctions:
Invertebrates have several other types of specific junctions, for example Septate junctions or the CeAJ (C. elegans apical junction).
Cell junction molecules
The molecules responsible for creating cell junctions include various cell adhesion molecules.
External links
- NIH
- Intercellular+Junctions at the US National Library of Medicine Medical Subject Headings (MeSH)
- Cell-Matrix+Junctions at the US National Library of Medicine Medical Subject Headings (MeSH)
Template:CellJunction Template:Structures of the cell membrane
cs:Buněčný spoj de:Zellkontakt it:Giunzione cellulare nn:Cellekontakt sl:Medcelični stik fi:Soluliitos sv:Cellkontakter Template:Jb1 Template:WH Template:WS