A hydroxyl radical removes a hydrogen atom from one of the carbon atoms in the fatty acid chain (only a portion of which is shown) forming
a molecule of water and leaving the carbon atom with an unpaired electron (in red); thus now a radical.
The hydroxyl radical is central to atmospheric chemistry as it initiates the oxidation of hydrocarbons in the atmosphere and so acts like a detergent.
Secondly the reaction:
NO2 + hν ' NO + O ...
Alternatively, it is possible that the hydroxyl radical may be generated, as seen in the reaction of certain iron chelates with H2O2.
radiodurans may act as free radical scavengers, thus increasing resistance to DNA damage by hydroxyl radicals. High levels of two oxygen toxicity defense enzymes, superoxide dismutase and catalase, are also found in D. radiodurans.
Hydroxyl radicals (← links)
Hydroxy- (← links)
Hydroxyl group (← links)
Phenol (← links)
Protein kinase (← links)
-yl (← links)
Ethylate (← links)
Amino alcohols (← links)
Sphingosine (← links) ...
 See also: Oxygen, Compound, Species, Lipid, Trans
|
