we have established , by means of a monoclonal antibody and a cdna clone , that a desmosomal polypeptide of mr 83,000 also occurs at the plaques of other types of adhering junctions , including the vinculin-actin-associated intercellular junctions , e.g. , the zonula adhaerens of epithelial cells and the endothelial , lens , and sertoli cell junctions .
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the
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zonula adhaerens