Figure 6
From: Molecular architecture of the fruit fly's airway epithelial immune system
Schematic delineation of antioxidant enzymes in the airway epithelial cell. A number of different enzymes that have the ability to detoxify reactive oxygen as well as reactive nitrogen species (ROS, NOS) are present in airway epithelial cells. Especially the complete SOD family and a total of four peroxiredoxins might serve as the first line of defence against oxygen radicals. On the other hand, a sophisticated glutathione based system allows detoxification of various different compounds. The dual oxidase Duox may be used to produce ROS in response to an encounter with bacterial pathogens.