Review Article
Hydrogen Sulfide and Cellular Redox Homeostasis
Figure 2
Endogenous superoxide anion () formation pathways. NOX catalyzes the one-electron reduction of oxygen to produce by utilizing NADPH as an electron donor. formation in the process of the XO-catalyzed conversion of hypoxanthine into xanthine or xanthine into uric acid. formation within catecholamine autooxidation.