Canine retinal superoxide dismutase: identity with the erythrocyte enzyme.

Superoxide dismutase has been isolated from canine retina and compared to the commercial erythrocyte enzyme. The two enzymes have been characterized by biochemical and immunochemical methods. By the criteria used (enzymatic activity, immunoactivity, absorption spectra, electrophoretic properties, amino acid analyses and peptide maps), the two enzymes are completely homogeneous.