Oxidative stress related enzymes

Glutathion peroxidase is the general name of an enzyme family with peroxidase activity whose main biological role is to protect the organism from oxidative damage. By catalyzing the following reaction : GS–SG + NADPH + H+ <=> 2 GSH + NADP+
Nitric Oxide Synthase (NOS) is an enzyme family in the body that contributes to transmission from one neuron to another (nNOS), to the immune system (iNOS) and to endothelial cells (eNOS).
Superoxide dismutases (SOD) are a class of enzymes that catalyze the dismutation of superoxide into oxygen and hydrogen peroxide.
Flavin Reductase is an enzyme that catalyzes the chemical reaction : reduced riboflavin + NADP+  riboflavin + NADPH + H+
Cytochrome P450 is an enzyme that catalyzes the monooxygenase reaction : RH + O2 + 2H+ + 2e– <=> ROH + H2O

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