The internal aldimine crystal structure of Salmonella typhimurium Tryptophan Synthase mutant beta-S377A in complex with inhibitor 2-({[4-(trifluoromethoxy)phenyl]sulfonyl}amino)ethyl dihydrogen phosphate (F9F) at the alpha-site, Cesium ion at the metal coordination site and L-Tryptophan at the enzyme beta-site
