Fibronectin extension and unfolding within cell matrix fibrils controlled by cytoskeletal tension.


Evidence is emerging that mechanical stretching can alter the functional states of proteins. Fibronectin (Fn) is a large, extracellular matrix protein that is assembled by cells into elastic fibrils and subjected to contractile forces. Assembly into fibrils coincides with expression of biological recognition sites that are buried in Fn's soluble state. To… (More)


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