Pentobarbital-mediated Regulation of Alternative Polyadenylation in Drosophila Glutathione S-Transferase D21 mRNAs

Drosophila glutathione S-transferase 1-1 shares a region of sequence homology with the maize glutathione S-transferase III.

We have characterized a Drosophila glutathione S-transferase (RX:glutathione R-transferase, EC 2.5.1.18) cDNA encoding a protein of 209 amino acids. The cDNA was expressed in Escherichia coli harboring the expression plasmid construct pGTDml-KK. The active enzyme, designated as Drosophila glutathione S-transferase 1-1, had a specific activity toward 1-chloro-2,4-dinitrobenzene comparable to tha...

Human placental glutathione S-transferase-mediated metabolism of methyl parathion.

The ability of human placental glutathione S-transferase (GSHTr) to metabolize methyl parathion (MeP) was examined. MeP was found to be a substrate for both partially purified pre-term and highly purified term placental GSHTr. The characterization of the reaction by high performance liquid chromatography revealed the presence of desmethyl parathion (DesMeP) as the sole metabolite. Term placenta...

Epidermal growth factor regulation of glutathione S-transferase gene expression in the rat is mediated by class Pi glutathione S-transferase enhancer I.

Using chloramphenicol acetyltransferase assays we showed that epidermal growth factor (EGF), transforming growth factor alpha (TGF alpha), and 3,3',4,4',5-pentachlorobiphenyl (PenCB) induce class Pi glutathione S-transferase (GSTP1) in primary cultured rat liver parenchymal cells. GSTP1 enhancer I (GPEI), which is required for the stimulation of GSTP1 expression by PenCB, also mediates EGF and ...

Expression of cytochrome P450 and glutathione S-transferase in human bone marrow mesenchymal stem cells

Currently several studies are being carried out on various properties of mesenchymal stem cells (MSCs)however there are a few investigations about drug metabolizing properties of these cells. The aim of thisstudy was to measure the key factors involved in drug metabolism in human bone marrow MSCs. For thispurpose, cellular glutathione (GSH), glutathione Stransferase (GSTs) and...

Cellular Immune Responses in Sheep against Glutathione S-transferase of Fasciola gigantica