title: Conformation of diphtheria toxin and an enzymically-active fragment.
mesh_terms: D002942:Circular Dichroism; D004167:Diphtheria Toxin; D004789:Enzyme Activation; D005779:Immunodiffusion; D007122:Immunoelectrophoresis; D009243:NAD; D010443:Peptide Chain Termination, Translational; D010445:Peptide Elongation Factors; D010446:Peptide Fragments; D011487:Protein Conformation
chemical_list: D004167:Diphtheria Toxin; D010445:Peptide Elongation Factors; D010446:Peptide Fragments; D009243:NAD