Article
Mutual synergy between catalase and peroxidase activities of the bifunctional enzyme KatG is facilitated by electron hole-hopping within the enzyme.
The Journal of biological chemistry - 10 Nov 2017
Njuma Olive J, Davis Ian, Ndontsa Elizabeth N, Krewall Jessica R, Liu Aimin, Goodwin Douglas C
Abstract excerpt
KatG is a bifunctional, heme-dependent enzyme in the front-line defense of numerous bacterial and fungal pathogens against H2O2-induced oxidative damage from host immune responses. Contrary to the expectation that catalase and peroxidase activities should be mutually antagonistic, peroxidatic electron donors (PxEDs) enhance KatG catalase activity. Here, we establish the mechanism of synergistic cooperation...
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