EC 7.1.1.7: Ubiquinol oxidase (electrogenic, proton-motive force generating)
Reaction catalysed:
(1a) 2 ubiquinol = 2 ubiquinone + 4 H(+)(Side 1) + 4 e(-)
Systematic name:
Ubiquinol:oxygen oxidoreductase (electrogenic, non H(+)-transporting)
Alternative Name(s):
- CydA (gene name)
- CydB (gene name)
- Cytochrome bd-I oxidase
Protein families (Pfam)![The deposited structure of PDB entry 6rko contains 1 copy of Pfam domain PF08173 (Membrane bound YbgT-like protein) in Cytochrome bd-I ubiquinol oxidase subunit X. Showing 1 copy in chain D [auth X].](https://www.ebi.ac.uk/pdbe/static/entry/6rko_4_X_Pfam_PF08173_image-200x200.png "The deposited structure of PDB entry <span class='highlight'>6rko</span> contains 1 copy of Pfam domain <span class='highlight'>PF08173 (Membrane bound YbgT-like protein)</span> in <span class='highlight'>Cytochrome bd-I ubiquinol oxidase subunit X</span>. Showing 1 copy in chain <span class='highlight'>D [auth X]</span>.")
![The deposited structure of PDB entry 6rko contains 1 copy of Pfam domain PF02322 (Cytochrome bd terminal oxidase subunit II) in Cytochrome bd-I ubiquinol oxidase subunit 2. Showing 1 copy in chain A [auth B].](https://www.ebi.ac.uk/pdbe/static/entry/6rko_1_B_Pfam_PF02322_image-200x200.png "The deposited structure of PDB entry <span class='highlight'>6rko</span> contains 1 copy of Pfam domain <span class='highlight'>PF02322 (Cytochrome bd terminal oxidase subunit II)</span> in <span class='highlight'>Cytochrome bd-I ubiquinol oxidase subunit 2</span>. Showing 1 copy in chain <span class='highlight'>A [auth B]</span>.")
![The deposited structure of PDB entry 6rko contains 1 copy of Pfam domain PF01654 (Cytochrome bd terminal oxidase subunit I) in Cytochrome bd-I ubiquinol oxidase subunit 1. Showing 1 copy in chain B [auth A].](https://www.ebi.ac.uk/pdbe/static/entry/6rko_2_A_Pfam_PF01654_image-200x200.png "The deposited structure of PDB entry <span class='highlight'>6rko</span> contains 1 copy of Pfam domain <span class='highlight'>PF01654 (Cytochrome bd terminal oxidase subunit I)</span> in <span class='highlight'>Cytochrome bd-I ubiquinol oxidase subunit 1</span>. Showing 1 copy in chain <span class='highlight'>B [auth A]</span>.")
InterPro annotations