Article
The role of the glycine triad in human glutathione synthetase.
Biochemical and biophysical research communications - 1 Oct 2010
Dinescu Adriana, Brown Teresa R, Barelier Sarah, Cundari Thomas R, Anderson Mary E
Abstract excerpt
Experimental kinetics and computational modeling of human glutathione synthetase (hGS) support the significant role of the G-loop glycine triad (G369, G370, G371) for activity of this ATP-grasp enzyme. Enzyme kinetic experiments indicate that G369V and G370V mutant hGS have little activity (<0.7 and 0.3%, respectively, versus wild-type hGS). However, G371V retains ∼13% of the activity of wild-type hGS. With...
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