Purification of soluble enzymes from erythrocyte hemolysates by three phase partitioning.

Abstract

1. The three phase partitioning method of protein fractionation was successfully applied to human erythrocyte hemolysates for the removal of hemoglobin and the concentration of soluble enzymes. 2. Human carbonic anhydrase I and II, catalase and superoxide dismutase were recovered free of hemoglobin and in good yield in the initial partitioning step, with a 60- to 80-fold enrichment of enzyme activities. 3. After further purification, carbonic anhydrases I and II were obtained at overall yields of 84 and 29%, respectively, crystallized catalase at 38% and superoxide dismutase at 52%.

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