title: Structural and functional roles of the cysteine residues in the alpha subunit of the Escherichia coli tryptophan synthetase. I. Structural roles and reactivity of the cysteine residues.
mesh_terms: D000818:Animals; D000941:Antigens; D001565:Benzoates; D002247:Carbon Isotopes; D055598:Chemical Phenomena; D002621:Chemistry; D003545:Cysteine; D003911:Dextrans; D004586:Electrophoresis; D004589:Electrophoresis, Disc; D004926:Escherichia coli / Q000201:enzymology*; D005033:Ethylmaleimide; D006836:Hydro-Lyases / Q000032:analysis; D007106:Immune Sera; D005779:Immunodiffusion; D007461:Iodoacetates; D007700:Kinetics; D008628:Mercury; D008722:Methods; D009500:Neutralization Tests; D009578:Nitrobenzenes; D010455:Peptides; D011817:Rabbits; D013440:Sulfides; D014364:Tryptophan; D014461:Ultracentrifugation
chemical_list: D000941:Antigens; D001565:Benzoates; D002247:Carbon Isotopes; D003911:Dextrans; D007106:Immune Sera; D007461:Iodoacetates; D009578:Nitrobenzenes; D010455:Peptides; D013440:Sulfides; D014364:Tryptophan; D006836:Hydro-Lyases; D008628:Mercury; D003545:Cysteine; D005033:Ethylmaleimide