7l03
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 and sodium ion at the metal coordination site at 1.60 angstrom resolution. three water molecules are close to the amynoacrylate at the enzyme beta-site
