this latter fraction was included on columns of sepharose cl-6b with or without 4 m guanidine and after pronase digestion was found to have 51 % of its radioactivity contained in the glycosaminoglycans ( gags ) heparan sulfate and chondroitin ( 4 or 6 ) sulfate in the ratio of 70 % to 30 % .
C0017973
glycosaminoglycans
C0019143
heparan sulfate