5) SOD is the key antioxidant enzyme in the metabolism of oxygen-free radicals in that it catalyzes the dismutation
of superoxide anion radicals to oxygen and hydrogen peroxide.
SOD catalyses the dismutation
of superoxide to hydrogen peroxide.
One unit of SOD is defined as the amount of enzyme needed to exhibit 50% dismutation
of the superoxide radical.
lore) dietician = nutrition logician-tactician-technician-physician dismutation
= oxygenation/hydrogenation disproportionation leptonic = electronic, muonic, tauonic (the three classes of lepton) luminescence = fluorescence, phosphorescence (the two main types of luminescence) patination = carbonation, oxidation (carbonation on copper/bronze, oxidation on other metals) stutter = shutter-utter (coinage, automatic camera metaphor) xenation = nonrelation visitation (from Jeff Grant; xenation (OED, rare) = sojourning as a stranger)
reaction of superoxide is catalyzed by SOD and Mn and Cu and Zn are essential components of Mn- and Cu/Zn SOD, respectively.
SOD participates in the dismutation
of superoxide to H[sub]2O[sub]2 while GPx converts H[sub]2O[sub]2 into H[sub]2O and O[sub]2.
Actually the enzyme encoded by SOD1 gene destroys free superoxide radicals formed in the body by catalyzing the dismutation
of superoxide into O2 and H2O2 (Borgstahl et al.
Superoxide dismutase (SOD) is one of the important antioxidant enzymes essential in defense mechanism against free-radical toxicity by dismutation
of superoxide radicals to produce [H.
The SOD is a metalo enzyme and involved in the dismutation
of superoxide radicles (O -) (Apel and Hert, 2004).
The equilibrium between reactive oxygen species (ROS) and antioxidant enzymes is crucial for cell health and survival and SOD1 catalyzes the dismutation
of superoxide radicals into hydrogen peroxides and oxygen (Luo et al.
The SOD catalyzes the dismutation
of the superoxide radical anion into hydrogen peroxide, afterwards CAT and GPx acts in conjuction with other enzymes to reduce H2O2 and to terminate lipid peroxidation (Halliwell and Chirico, 1993).
by SOD as well as by spontaneous dismutation
in the cell.