junctional complex

Also found in: Encyclopedia.

junc·tion·al com·plex

the attachment zone between epithelial cells, typically consisting of the zonula occludens, the zonula adherens, and the macula adherens (desmosome).


pertaining to a junction or join.

junctional complex
an attachment point between epithelial cells composed of a number of complex structures, including desmosomes and gap junctions.
junctional diversity
the diversity in the amino acid sequence of antibodies is, in part, due to the different amino acid sequences generated at the junctions of the variable and constant regions.
junctional mechanobullous disease
inherited defect of skin in Belgian foals, Angus and Simmental calves, Suffolk and South Dorset lambs. See epidermolysis bullosa.
References in periodicals archive ?
The Serteli-spermatid junctional complex adhesion strength is affected in vitro by Adjudin," Journal of Andrology 27(6): 790-794.
ERM proteins are involved in linking the actin cytoskeleton to the junctional complex, whereas Dlg and Scrib play a more regulatory role and are required for the proper positioning of the SJ.
The lesion described in our case, with microscopic features typical of an epithelioid mesothelioma in the hematoxylin-eosin stain, stained negative for calretinin, was resistant to hyaluronidase in the colloidal iron stain, stained positive for Leu-M1, and had short villi and luminal and apical junctional complex on electron microscopic studies diagnostic of adenocarcinoma.