title: Immunochemical study of the beta chain of Escherichia coli tryptophan synthetase and its proteolytic fragments.
mesh_terms: D000818:Animals; D055598:Chemical Phenomena; D002621:Chemistry; D004926:Escherichia coli / Q000032:analysis*; D007106:Immune Sera / Q000494:pharmacology; D046911:Macromolecular Substances; D010446:Peptide Fragments / Q000276:immunology; D010447:Peptide Hydrolases; D011487:Protein Conformation; D011817:Rabbits; D014367:Tryptophan Synthase / Q000276:immunology*
chemical_list: D007106:Immune Sera; D046911:Macromolecular Substances; D010446:Peptide Fragments; D010447:Peptide Hydrolases; D014367:Tryptophan Synthase