Adherens junction
Protein complexes at cell junctions / From Wikipedia, the free encyclopedia
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In cell biology, adherens junctions (or zonula adherens, intermediate junction, or "belt desmosome"[1]) are protein complexes that occur at cell–cell junctions and cell–matrix junctions in epithelial and endothelial tissues,[2] usually more basal than tight junctions. An adherens junction is defined as a cell junction whose cytoplasmic face is linked to the actin cytoskeleton. They can appear as bands encircling the cell (zonula adherens) or as spots of attachment to the extracellular matrix (focal adhesion).
Adherens junction | |
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Details | |
Identifiers | |
Latin | junctio adhaesionis |
MeSH | D022005 |
TH | H1.00.01.1.02002 |
FMA | 67400 |
Anatomical terminology |
Adherens junctions uniquely disassemble in uterine epithelial cells to allow the blastocyst to penetrate between epithelial cells.[3]
A similar cell junction in non-epithelial, non-endothelial cells is the fascia adherens. It is structurally the same, but appears in ribbonlike patterns that do not completely encircle the cells. One example is in cardiomyocytes.