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  • Title: Purification and characterization of a glutathione S-transferase from the fungus Cunninghamella elegans.
    Author: Cha CJ, Coles BF, Cerniglia CE.
    Journal: FEMS Microbiol Lett; 2001 Sep 25; 203(2):257-61. PubMed ID: 11583857.
    Abstract:
    Cunninghamella elegans grown on Sabouraud dextrose broth had glutathione S-transferase (GST) activity. The enzyme was purified 172-fold from the cytosolic fraction (120000 x g) of the extract from a culture of C. elegans, using Q-Sepharose ion exchange chromatography and glutathione affinity chromatography. The GST showed activity against 1-chloro-2,4-dinitrobenzene, 1,2-dichloro-4-nitrobenzene, 4-nitrobenzyl chloride, and ethacrynic acid. Sodium dodecyl sulfate-polyacrylamide gel electrophoresis gel filtration chromatography revealed that the native enzyme was homodimeric with a subunit of M(r) 27000. Comparison by Western blot analysis implied that this fungal GST had no relationship with mammalian alpha-, mu-, and pi-class GSTs, although it showed a small degree of cross-reactivity with a theta-class GST. The N-terminal amino acid sequence of the purified enzyme showed no significant homology with other known GSTs.
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