1.17.1.1	-	
1.17.1.1	enzyme E1: using filtration on a Sephadex G-100 column and column chromatography on DEAE-cellulose, enzyme E3: using two filtrations on Sephadex G-100 columns	
1.17.1.1	of cofactor, using streptomycin sulfate precipitation, ammonium sulfate precipitation and dialysis, DEAE-cellulose chromatography, ultrafiltration, Bio Gel P-2 filtration and ion exchange chromatography on Dowex-1	
1.17.1.1	the first three steps are common to the purification of enzyme E1, enzyme E3 and cofactor, their separation can be accomplished after step 4, step 1: preparation of the crude extract, step 2: streptomycin sulfate precipitation, step 3: ammonium sulfate precipitation and dialysis, step 4: DEAE-cellulose chromatography, step 5: purification of enzyme E1, gel filtration on Sephadex G-100, step 6: second DEAE-cellulose chromatography, step 7: preparative polyacrylamide gel electrophoresis, step 5': purification of enzyme E3, gel filtration on Sephadex G-100, step 6': second DEAE-cellulose chromatography, step 7': third DEAE-cellulose chromatography