Figure 3.

Representative disaccharide units of CS types, (A) CS-A, (B) CS-C, (C) CS-D, (D) CS-E, and (E) CS-K in their 3D stick models. Table 1 displays the structural description of these disaccharides. Hydrogens, carbons, oxygens and nitrogens are respectively represented in light grey, dark grey, red and blue. The carbon numbering and monosaccharide units are the same as shown in Figure 2, since all structures are the GlcA(β1−3)GalNAc disaccharide backbone. Models created by the online AMBER/GLYCAM-based carbohydrate builder [40].