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| Description: Superoxide per se is relatively nontoxic. Because it contains an unpaired electron, it is a free radical, and it combines readily with another free radical, nitric oxide, a biological signaling agent that is produced in many animal tissues. The product is peroxynitrite also considered a reactive oxygen species. Peroxynitrite causes lipid peroxidation and also causes nitration of tyrosyl hydroxyl groups in proteins, a reaction particularly damaging to membrane proteins. Picture Stats: Views: 162 Filesize: 45.75kB Height: 600 Width: 392 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=34604 |