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  • Title: Purification of human erythrocyte glucose 6-phosphate dehydrogenase and glutathione reductase enzymes using 2',5'-ADP Sepharose 4B affinity column material in single chromatographic step.
    Author: Erat M.
    Journal: Protein Expr Purif; 2004 Apr; 34(2):257-60. PubMed ID: 15003259.
    Abstract:
    The enzymes of glucose 6-phosphate dehydrogenase and glutathione reductase were purified from human erythrocytes in one chromatographic step consisting of the use of the commercially available resin 2',5'-ADP Sepharose 4B by using different washing buffers. Ammonium sulfate (30-70%) precipitation was performed on the hemolysate before applying to the affinity column. Using this procedure, G6PG, having the specific activity of 22.9 EU/mg proteins, was purified with a yield of 43% and 9150-fold; GR, having the specific activity of 20.7 EU/mg proteins, was purified with a yield of 26% and 8600-fold. The purity of the enzymes was checked on sodium dodecyl sulfate-polyacrylamide gel electrophoresis and each purified enzyme showed a single band on the gel. This procedure has advantages of preventing of enzyme denaturation, short experimental duration, and use of less chemical materials for purification of the enzymes.
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