Robuta

https://www.ncbi.nlm.nih.gov/Structure/pdb/1LU2 1LU2: DOLICHOS BIFLORUS SEED LECTIN IN COMPLEX WITH THE BLOOD GROUP A TRISACCHARIDE LECTIN2-acetamido-2-deoxy-alpha-D-galactopyranoseCALCIUM IONMANGANESE (II) ION