subsequent ion-exchange fractionation and sds-page analysis of chondroitinase abc-resistant gags confirmed that the splenic gag recognized by splenocytes was a heparan sulphate/heparin molecule of approximately 20,000 mw with a binding affinity to splenocytes of approximately 5 x 10 ( -8 ) m .
C0017973
gags
C0019143
heparan