to test the possible involvement of heparan sulfate proteoglycans in chondrogenesis , we have studied the effect of their major glycosaminoglycan ( gag ) component , heparan sulfate , and other structurally related gags on chondrogenesis in micromass cultures of chick limb bud mesenchyme ( hamburger-hamilton stages 23/24 ) .
C0062503
heparan sulfate proteoglycans
C0019143
heparan sulfate