Index PDB ID Protein Name Organism UniProt ID Ligand Name Canonical SMILES HET Code 1 4ROL Hemoglobin subunit alpha Homo sapiens (Human) P69905 4-{2,3-dichloro-4-[(2E)-3-(1H-imidazol-2-yl)prop-2-enoyl]phenoxy}butanoic acid OC(=O)CCCOc1ccc(C(=O)\C=C\c2ncc[nH]2)c(Cl)c1Cl 3U7