kinetic data from label-chase experiments and gel filtration analysis of the molecular weight distribution of the radiolabeled glycosaminoglycans indicated that i-cells and nh4cl-treated normal fibroblasts ( a ) internalize cell surface proteoglycans , ( b ) remove glycosaminoglycan chains from proteoglycan core proteins , and ( c ) degrade heparan sulfate glycosaminoglycan chains via an endoglycosidic activity .
C0007634
cells
C0699040
cell surface