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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.
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