the cell-associated hspgs were relatively large ( kav = 0.1 on superose 12 ) , had a buoyant density in cesium chloride gradients of 1.45-1.55 g/ml , and contained heparan sulfate chains that fell into two size classes , exhibiting kav values on superose 12 of 0.2-0.5 and 0.7-0.8 , respectively .
C0017973
hspgs
C0019143
heparan sulfate