heparan sulfate and chondroitin sulfate glycosaminoglycans of balb/c 3t3 fibroblasts , metabolically labeled with [ 3h ] glucosamine and [ 35s ] sulfate precursors , are resolved by preparative sepharose cl-4b chromatography into distinct products , the proteoglycans and the glycosaminoglycan free chains , the latter resistant to appreciable molecular weight shift upon alkaline borohydride reduction .
C0019143
heparan sulfate
C0017973
glycosaminoglycan