More than 1000 lectin three-dimensional structures are available in the database.
Most of them have been determined by x-ray diffraction,
although some neutron diffraction structures are available as well
as NMR solution structures or theoretical models.
About 70% of these structures have been determined in complex with a carbohydrate ligand; ranging from monosaccharides, to oligosaccharides or glycoproteins. This consists therefore in a very large amount of information about the molecular basis of carbohydrate recognition by lectins.