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Related to zonula adherens: macula adherens
a beltlike attachment, similar to a desmosome, between columnar epithelial cells; supported by cytoplasmic filaments.
Synonym(s): intermediate junction
Etymology: L, zone, belt, adhaerere, to stick
a continuous zone running around the outer surface of a cell in which there is an intercellular space of about 15 to 20 nm width. A component of the junctional complex between cells, the zone contains dense filamentous material.
Adherens JunctionA protein complex located at the junction between epithelial cells, which are subjected to stretching and pulling, yet require tight contact between them so they can function as a single unit. Adherens junctions are linked to the cell’s actin cytoskeleton, and take two forms: as bands encircling the cell—zonula adherens—or as “spot welds” to the extracellular matrix—adhesion plaques. Adherens junctions are composed of 4 principle proteins: cadherins and alpha-catenin, plakoglobulin (aka beta or gamma catenin) and p120 (aka delta catenin).
zo·nu·la ad·he·rens(zōnyū-lă ad-hērenz)
Beltlike attachment, similar to a desmosome, between columnar epithelial cells; supported by cytoplasmic filaments. Also called intermediate junction.
pl. zonulae [L.] zonule.
common component of junctional complexes between epithelial cells; forms an effective barrier between the lumen and connective tissue. Called also tight junction.
suspensory ligament of the lens.
part of the junctional complex of columnar epithelium.