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Hum Genomics Proteomics. 2010 Jun 13;2010:876940. doi: 10.4061/2010/876940.

Genetic variations in human glutathione transferase enzymes: significance for pharmacology and toxicology.

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Department of Molecular and Cellular Biology, University of Guelph, Guelph, ON, Canada N1G 2W1.


Glutathione transferase enzymes (GSTs) catalyze reactions in which electrophiles are conjugated to the tripeptide thiol glutathione. While many GST-catalyzed transformations result in the detoxication of xenobiotics, a few substrates, such as dihaloalkanes, undergo bioactivation to reactive intermediates. Many molecular epidemiological studies have tested associations between polymorphisms (especially, deletions) of human GST genes and disease susceptibility or response to therapy. This review presents a discussion of the biochemistry of GSTs, the sources-both genetic and environmental-of interindividual variation in GST activities, and their implications for pharmaco- and toxicogenetics; particular attention is paid to the Theta class GSTs.

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