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  • Title: Distribution of a major surface-associated glycoprotein, fibronectin, in cultures of adherent cells.
    Author: Mosher DF, Saksela O, Keski-Oja J, Vaheri A.
    Journal: J Supramol Struct; 1977; 6(4):551-7. PubMed ID: 563496.
    Abstract:
    Fibronectin was present in media and cell layers of cultures of adherent cells from human skin, kidney, lung, chest wall, liver, and heart. Cell-surface fibronectin, visualized by immunofluorescence, was in dense fibrillar (cultures from lung), discrete fibrillar (e.g., cultures from skin), or punctate (some cultures from kidney) structures. The subunit sizes of cell-surface fibronectin and fibronectin soluble in medium appeared identical in sodium dodecyl sulfate-polyacrylamide gels. To explain the polymorphism of cell-surface fibronectin, there must be chemical differences among the fibronectins synthesized by different cell strains or factors in the cell layer which influence fibronectin binding and aggregation.
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