the concentration of total glycosaminoglycans is 0.142 mumol hexosamine/100 mg protein , comprising 57 % chondroitin 4-sulfate , 7 % chondroitin 6-sulfate , 29 % hyaluronic acid and 7 % heparan sulfate .
C0017973
glycosaminoglycans
C0019143
heparan sulfate