Sulfation is a common final step in the biotransformation of xenobiotics and is traditionally associated with inactivation. However, the sulfate group is electron-withdrawing and may be cleaved off heterolytically in some molecules leading to electrophilic cations which may form adducts
Various enzymatically formed sulfuric acid esters are chemically reactive and mutagenic. This metabolic activation pathway is not detected in standard in-vitro mutagenicity test systems. We describe the construction of Salmonella typhimurium TA1538-derived strains expressing alloenzymes *1, *2, *3, *5, *6
Highly efficient oxidation of alcohols to carbonyl compounds in the presence of molecular oxygen using a novel heterogeneous ruthenium catalyst.
Our previous studies on 7-hydroxymethyl-12-methylbenz[a]anthracene and 6-hydroxymethylbenzo[a]pyrene showed that cytosolic sulfotransferase activity plays a major role in the formation of hepatic benzylic DNA and RNA adducts by these carcinogens in rats. In the present study, we found similar sulfotransferase activity
1-Hydroxymethylpyrene (HMP) is activated to a potent mutagen, detectable in Salmonella typhimurium, in the presence of hepatic cytosol, cofactor for sulfotransferases, and chloride anions. The number of induced mutations is linear to the amount of cytosol used over a wide
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