title: The spatial organization of the active sites of the bifunctional oligomeric enzyme tryptophan synthase: cross-linking by a novel method.
mesh_terms: D001426:Bacterial Proteins / Q000378:metabolism; D001665:Binding Sites; D055598:Chemical Phenomena; D002621:Chemistry; D003432:Cross-Linking Reagents; D004926:Escherichia coli / Q000201:enzymology; D014367:Tryptophan Synthase / Q000378:metabolism*
chemical_list: D001426:Bacterial Proteins; D003432:Cross-Linking Reagents; D014367:Tryptophan Synthase