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A cell-cell junction that seals cells together in an epithelium in a way that prevents even small molecules from leaking from one side of the sheet to the other. A functional unit located near the cell apex at the points of contact between epithelial cells, which in vertebrates is composed of the tight junction, the zonula adherens, and desmosomes and in invertebrates is composed of the subapical complex (SAC), the zonula adherens and the septate junction. Functions in the regulation of cell polarity, tissue integrity and intercellular adhesion and permeability. A septate junction that lacks the regular arrays of electron-dense septae found in pleated septate junctions. A cell-cell junction that forms a continuous band around each cell in an epithelium; within the septate junction the membranes of adjacent cells maintain a constant distance of approximately 15 nm; found in invertebrates.

View Gene Ontology (GO) Term

GO TERM SUMMARY
Name: smooth septate junction
Acc: GO:0005920
Aspect: Cellular Component
Desc: A septate junction that lacks the regular arrays of electron-dense septae found in pleated septate junctions.
Synonyms:
  • zonula continua
Proteins in PDR annotated with:
   This term: 0
   Term or descendants: 0


[geneontology.org]
INTERACTIVE GO GRAPH

GO:0005920 - smooth septate junction (interactive image map)
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Created and Maintained by: Michael Riffle