digestion of [ methionine-35s ] proteoglycans with chondroitinase and/or heparitinase , followed by sds/polyacrylamide-gel electrophoresis , indicated that the medium and cell layer contain at least three chondroitin sulphate proteoglycans , one dermatan sulphate proteoglycan , and two heparan sulphate proteoglycans which differ from one another in the size of core molecules .
C0033692
proteoglycans
C0062503
heparan sulphate proteoglycans