The extracellular matrix protein fibronectin forms fibrils when in association with cells that exert tension. Cells apply enough force to stretch fibrils in vivo. Stretching of individual ...

Fibronectin (Fn) is a glycoprotein ranging from 230 to 270 kDa, typically existing as a dimer linked by disulfide bonds at the C-termini. Each monomer consists of three repeating units: 12 Type I, ...