Ubiquinol oxidase

Ubiquinol oxidases (EC 1.10.3.-) are enzymes in the bacterial electron transport chain that oxidise ubiquinol into ubiquinone and reduce oxygen to water. These enzymes are one set of the many alternative terminal oxidases in the branched prokaryotic electron transport chain. [cite journal |author=García-Horsman JA, Barquera B, Rumbley J, Ma J, Gennis RB |title=The superfamily of heme-copper respiratory oxidases |journal=J. Bacteriol. |volume=176 |issue=18 |pages=5587–600 |year=1994 |pmid=8083153 |url=http://www.pubmedcentral.nih.gov/picrender.fcgi?artid=196760&blobtype=pdf] The overall structure of the "E. coli" ubiquinol oxidase is similar to that of the mammalian Cytochrome c oxidase, with the addition of a polar ubiquinol-binding site embedded in the membrane. [cite journal |author=Abramson J, Riistama S, Larsson G, "et al" |title=The structure of the ubiquinol oxidase from Escherichia coli and its ubiquinone binding site |journal=Nat. Struct. Biol. |volume=7 |issue=10 |pages=910–7 |year=2000 |pmid=11017202 |doi=10.1038/82824]

ee also

*Oxidative phosphorylation
*Microbial metabolism

References