in the light of accumulating data that implicate cell surface heparan sulfate proteoglycans ( hspgs ) with a role in cell interactions with extracellular matrix molecules such as fibronectin , we have compared the properties of these molecules in wild-type bhk cells and an adhesion-defective ricin-resistant mutant ( ricr14 ) .
C0062503
heparan sulfate
C0015350
extracellular matrix