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Cross-eyed stereo views of the alginate-binding site of AlgQ2. A, AlgM1M2SS/AlgQ2 + Δ3M; B, AlgQ2 + Δ3M; C, AlgM1M2SS/AlgQ2 + 6–8M; D, AlgQ2 + 7–10M. ΔM and M are shown as yellow and brown saccharides, respectively. Water molecules are shown as blue spheres. Dotted lines, hydrogen bonds.
