A superoxide anion is a compound that possesses an atom or molecule in which the total number of electrons is not equal to the total number of protons, giving it a net positive or negative electrical charge with the chemical formula O2− with one unpaired electron, leading to the generating of superoxide anion free radical.
Mutations in the gene coding for the NADPH oxidase cause immune deficiency chronic granulomatous disease, leading to extreme susceptibility to infection and pathogenesis of many diseases, including aging.
