1. Glutathione S-transferases from the gastrointestinal nematode Heligmosomoides polygyrus and mammalian liver compared
- Author
-
Peter M. Brophy, Anne Ben-Smith, David I. Pritchard, Jerzy M. Behnke, and A. Brown
- Subjects
Physiology ,Blotting, Western ,Molecular Sequence Data ,Biology ,Biochemistry ,Substrate Specificity ,Lipid peroxidation ,chemistry.chemical_compound ,Animals ,Amino Acid Sequence ,Glutathione transferase activity ,Molecular Biology ,Strongylida ,Glutathione Transferase ,Mammals ,chemistry.chemical_classification ,Chromatography ,Nematospiroides dubius ,General Medicine ,Glutathione ,biology.organism_classification ,Enzyme ,Nematode ,Liver ,chemistry ,biology.protein ,Heligmosomoides polygyrus ,Sequence Alignment ,Peroxidase - Abstract
Glutathione S-transferases have been partially characterised from the gastrointestinal nematode Heligmosomoides polygyrus. Two major subunit families were purified (24 and 23 kDa) with N-terminal homology to the mammalian Alpha family. Four dimeric forms of GST were purified from the nematode by glutathione-affinity chromatography, two major enzymes (pI 8.1, 5.0) and two minor forms (pI 5.8, 5.3). The purified GST pool could neutralize model and lipid peroxides via peroxidase activity but not peroxidation derived reactive carbonyls via glutathione transferase activity. Antisera raised to the pooled nematode GSTs appeared to recognize other Strongylida GSTs more strongly on Western blotting compared to mammalian GSTs.
- Published
- 1994