Fig. 1: Structure of LecB lectin in complex with fucose.
From: Neutron crystallography reveals mechanisms used by Pseudomonas aeruginosa for host-cell binding

a Tetramer of LecB (PDB code: 1GZT). b Fucose-binding site. Calcium ions and water molecules are represented by purple and red spheres respectively. Hydrogen bonds are shown as yellow dashed lines.