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High-yield extraction and purification of glutathione reductase from baker's yeast.

Glutathione reductase was extracted from toluene-treated baker's yeast cells by a two-stage buffer autolysis method. The yeast cells were treated with toluene for 1 h at 40 degrees C. After removal of the toluene, the cells were then allowed to autolysis in buffer for 72 h at 4 degrees C. The cells were collected and resuspended in buffer. A second stage autolysis was carried out for another 96 h at 4 degrees C. The enzyme was purified to 786-fold from the second stage cell autolysate by using two steps of affinity chromatography with triazine dyes (Yellow H-E4G and Yellow H-E6G) coupled to Sepharose CL-4B. By using this simplified method, 1.44 mg (165 units/mg) of glutathione reductase was obtained from 65 g (wet weight) of yeast cells, equivalent to 80% enzyme recovery.[1]

References

  1. High-yield extraction and purification of glutathione reductase from baker's yeast. Tsai, Y.C., Yang, T.Y., Cheng, S.W., Li, S.N., Wang, Y.J. Prep. Biochem. (1991) [Pubmed]
 
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