DS-GAG chain

The DS.GAG chain in calf ligamentum nuchae is attached to a L-lysine residue in the protein core. 2 In adult human skin, the DS.GAG chain is linked by a D-xylosyl-L-alanine bond involving the C-terminus carboxyl group of L-alanine.13... 

In general, small PGs have low Mr values compared to the high-density cartilage PG,65 and, contrary to the high-density cartilage PG,66,67 the GAG chain in small PGs is attached to the NH2-terminus of the protein core, not the C02H terminus. In PG-I, two DS.GAG chains are attached to the L-ser-ine/L-threonine residues at the 5 and 11 positions, whereas, in PG-II, a single... 

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