Index PDB ID Protein Name Organism UniProt ID Ligand Name Canonical SMILES HET Code 1 1F4D Thymidylate synthase Escherichia coli (strain K12) P0A884 (2R)-N-{2-[(2-aminoethyl)disulfanyl]ethyl}-1-(4-methylbenzenesulfonyl)pyrrolidine-2-carboxamide Cc1ccc(cc1)S(=O)(=O)N1CCC[C@@H]1C(=O)NCCSSCCN TP2 2 1F4C Thymidylate synthase Escherichia coli (strain K12) P0A884 (2R)-N-{2-[(2-aminoethyl)disulfanyl]ethyl}-1-(4-methylbenzenesulfonyl)pyrrolidine-2-carboxamide Cc1ccc(cc1)S(=O)(=O)N1CCC[C@@H]1C(=O)NCCSSCCN TP2