7kyt
The aminoacrylate form of the wild-type salmonella typhimurium tryptophan synthase in complex with inhibitor n-(4'-trifluoromethoxybenzenesulfonyl)-2-amino-1-ethylphosphate (f9f) at the enzyme alpha-site, cesium ion at the metal coordination site and benzimidazole (bzi) at the enzyme beta-site at 1.35 angstrom resolution
