Biosynthetic Pathways for Differential Expression of Functional Chondroitin Sulfate and Heparan Sulfate

I. Introduction ................................................................................................289 II. Biosynthesis of the GAG-Protein Linkage Region ..................................291 III. Biosynthesis of Chondroitin Backbone ......................................................299 IV. Sulfation of Chondroitin Backbone ..........................................................303 V. Biosynthesis of Heparan Sulfate and Heparin Backbones ........................304 VI. Modifications of Heparan Sulfate/Heparin Backbone ..............................307