As a new approach for protein purification, affinity characteristics of tannin for enzyme protein and its applicability to adsorption chromatography were investigated. Crude nuclease P₁ was first purified by fractionation of ammonium sulfate followe...
As a new approach for protein purification, affinity characteristics of tannin for enzyme protein and its applicability to adsorption chromatography were investigated. Crude nuclease P₁ was first purified by fractionation of ammonium sulfate followed by tannin adsorption chromatography. Result showed that adsorption capacity of nuclease P₁ onto one gram of immobilized tannin was 40 ㎎ and recovery yield of the enzyme was 90%. Specific activity of the purified nuclease P₁ increased to 15.6 fold higher than of crude extract, recovering 55.396 of enzyme yield.