cellular 125i-fn and a major 125i-fn fragment ( mr 120,000-140,000 ) , containing the cell-binding site , revealed in fibroblasts mr 170,000 , mr 140,000 , and mr 47,000 fn-binding polypeptides of which the first two could also be found in the plasma membrane preparations .
C0007634
cell
C0007603
plasma membrane