title: Side-chain configuration of the sulfur-analog of penicillin produced by Cephalosporium acremonium.
mesh_terms: D000164:Acremonium / Q000378:metabolism*; D000591:Amino Acid Isomerases / Q000494:pharmacology; D001426:Bacterial Proteins; D008968:Molecular Conformation; D010406:Penicillins / Q000096:biosynthesis
chemical_list: D001426:Bacterial Proteins; D010406:Penicillins; D000591:Amino Acid Isomerases; C040886:isopenicillin N epimerase