Abstract
The glutathione S-transferases of human platelets have been compared with those of erythrocytes. Although wide variations in activity were found, in individual subjects, the activity in these cell types was significantly correlated. The enzymes demonstrated similar isoelectric points and electrophoretic mobilities and it appears that the platelet enzyme is also a product of the GST3 locus. There was no correlation between platelet enzyme activity and plasma concentrations of retinol and cholesterol, but in men, the relationship between activity and carotene was significant. It is suggested that GST3 isoenzyme activity depends on vitamin A.
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More From: Biochemical and Biophysical Research Communications
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