Abstract
Among aerobic prokaryotes, many different terminal oxidase complexes have been described. Sequence comparison has revealed that the aa3-type cytochrome c oxidase and the bo3-type quinol oxidase are variations on the same theme: the heme-copper oxidase. A third member of this family has recently been recognized: the cbb3-type cytochrome c oxidase. Here we give an overview, and report that nitric oxide (NO) reductase, a bc-type cytochrome involved in denitrification, shares important features with these terminal oxidases as well. Tentative structural, functional and evolutionary implications are discussed.
Original language | English |
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Pages (from-to) | 1-9 |
Number of pages | 9 |
Journal | FEMS Microbiology Letters |
Volume | 121 |
Issue number | 1 |
Publication status | Published - 1 Aug 1994 |
Keywords
- Amino Acid Sequence
- Bacterial Proteins
- Copper
- Electron Transport Complex IV
- Hemeproteins
- Metalloproteins
- Molecular Sequence Data
- Oxidoreductases
- Journal Article
- Research Support, Non-U.S. Gov't
- Review