Figure 3 - full size

Figure 3.
FIGURE 3. Fold and calcium binding of CBM51. Shown are color-ramped schematic representations of GH95CBM51 with methyl-β-D-galactose (A) and GH98CBM51 with the B antigen trisaccharide (B), both with bound calcium atoms shown as pink spheres and ligands in stick representation. C shows a schematic representation of CBM6-1 from Clostridium stercorarium (Protein Data Bank code 1uy4) (34), with its bound calcium atom shown as a pink sphere and its bound xylotetraose ligand shown in stick representation. This structure is a representative β-sandwich CBM showing the common calcium-binding site.