Immunohistochemical localization of human carbonic anhydrase isoenzyme C

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Abstract
Methods for immunohistochemical localization of human carbonic anhydrase isoenzyme C (HCA C) with indirect fluorescent antibody and immunoperoxidase techniques are described. Both methods revealed large amounts of this “high activity” isoenzyme in the mucosae of human stomach and appendix. With the indirect immunofluorescent method the presence of the enzyme in human erythrocyte cytoplasm was also demonstrated. Correlations of present findings with those obtained with the traditional histochemical methods for demonstration of carbonic anhydrase activity are discussed.