title: The structure and function of the third component of human complement--I. The nature and extent of conformational changes accompanying C3 activation.
mesh_terms: D002942:Circular Dichroism; D003167:Complement Activation; D003176:Complement C3 / Q000276:immunology; D006801:Humans; D010084:Oxidation-Reduction; D011487:Protein Conformation; D013050:Spectrometry, Fluorescence; D013056:Spectrophotometry, Ultraviolet; D014357:Trypsin
chemical_list: D003176:Complement C3; D014357:Trypsin