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E. coli cytochrome bo3 ubiquinol oxidase monomer

Source organism: Escherichia coli
Biochemical function: cytochrome bo3 ubiquinol oxidase activity
Biological process: electron transport coupled proton transport
Cellular component: membrane

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EC 7.1.1.3: Ubiquinol oxidase (H(+)-transporting)

Reaction catalysed:
2 ubiquinol + O(2) + n H(+)(Side 1) = 2 ubiquinone + 2 H(2)O + n H(+)(Side 2)
Systematic name:
Ubiquinol:oxygen oxidoreductase (H(+)-transporting)
Alternative Name(s):
  • Cytochrome bb3 oxidase
  • Cytochrome bo oxidase
  • Cytochrome bo(3) oxidase

GO terms

Biochemical function:
Biological process:
Cellular component:

Sequence families

Pfam Protein families (Pfam)
PF03626
Domain description: Prokaryotic Cytochrome C oxidase subunit IV
Occurring in:
  1. Cytochrome bo(3) ubiquinol oxidase subunit 4
The deposited structure of PDB entry 8f68 contains 1 copy of Pfam domain PF03626 (Prokaryotic Cytochrome C oxidase subunit IV ) in Cytochrome bo(3) ubiquinol oxidase subunit 4. Showing 1 copy in chain D.

PF00510
Domain description: Cytochrome c oxidase subunit III
Occurring in:
  1. Cytochrome bo(3) ubiquinol oxidase subunit 3
The deposited structure of PDB entry 8f68 contains 1 copy of Pfam domain PF00510 (Cytochrome c oxidase subunit III) in Cytochrome bo(3) ubiquinol oxidase subunit 3. Showing 1 copy in chain C.

PF06481
Domain description: COX Aromatic Rich Motif
Occurring in:
  1. Cytochrome bo(3) ubiquinol oxidase subunit 2
The deposited structure of PDB entry 8f68 contains 1 copy of Pfam domain PF06481 (COX Aromatic Rich Motif) in Cytochrome bo(3) ubiquinol oxidase subunit 2. Showing 1 copy in chain B.

PF00116
Domain description: Cytochrome C oxidase subunit II, periplasmic domain
Occurring in:
  1. Cytochrome bo(3) ubiquinol oxidase subunit 2
The deposited structure of PDB entry 8f68 contains 1 copy of Pfam domain PF00116 (Cytochrome C oxidase subunit II, periplasmic domain) in Cytochrome bo(3) ubiquinol oxidase subunit 2. Showing 1 copy in chain B.

PF00115
Domain description: Cytochrome C and Quinol oxidase polypeptide I
Occurring in:
  1. Cytochrome bo(3) ubiquinol oxidase subunit 1
The deposited structure of PDB entry 8f68 contains 1 copy of Pfam domain PF00115 (Cytochrome C and Quinol oxidase polypeptide I) in Cytochrome bo(3) ubiquinol oxidase subunit 1. Showing 1 copy in chain A.

InterPro InterPro annotations
IPR000883
Domain description: Cytochrome c oxidase subunit I
Occurring in:
  1. Cytochrome bo(3) ubiquinol oxidase subunit 1
IPR000298
Domain description: Cytochrome c oxidase subunit III-like
Occurring in:
  1. Cytochrome bo(3) ubiquinol oxidase subunit 3
IPR002429
Domain description: Cytochrome c oxidase subunit II-like C-terminal
Occurring in:
  1. Cytochrome bo(3) ubiquinol oxidase subunit 2
IPR008972
Domain description: Cupredoxin
Occurring in:
  1. Cytochrome bo(3) ubiquinol oxidase subunit 2
IPR036257
Domain description: Cytochrome C oxidase subunit II, transmembrane domain superfamily
Occurring in:
  1. Cytochrome bo(3) ubiquinol oxidase subunit 2
IPR006333
Domain description: Cytochrome o ubiquinol oxidase subunit II
Occurring in:
  1. Cytochrome bo(3) ubiquinol oxidase subunit 2
IPR036927
Domain description: Cytochrome c oxidase-like, subunit I superfamily
Occurring in:
  1. Cytochrome bo(3) ubiquinol oxidase subunit 1
IPR005171
Domain description: Cytochrome C oxidase subunit IV, prokaryotes
Occurring in:
  1. Cytochrome bo(3) ubiquinol oxidase subunit 4
IPR014210
Domain description: Cytochrome o ubiquinol oxidase subunit IV
Occurring in:
  1. Cytochrome bo(3) ubiquinol oxidase subunit 4
IPR024791
Domain description: Cytochrome c oxidase subunit III
Occurring in:
  1. Cytochrome bo(3) ubiquinol oxidase subunit 3
IPR035973
Domain description: Cytochrome c oxidase subunit III-like superfamily
Occurring in:
  1. Cytochrome bo(3) ubiquinol oxidase subunit 3
IPR014206
Domain description: Cytochrome o ubiquinol oxidase, subunit III
Occurring in:
  1. Cytochrome bo(3) ubiquinol oxidase subunit 3
IPR013833
Domain description: Cytochrome c oxidase, subunit III, 4-helical bundle
Occurring in:
  1. Cytochrome bo(3) ubiquinol oxidase subunit 3
IPR033946
Domain description: Ubiquinol oxidase subunit III domain
Occurring in:
  1. Cytochrome bo(3) ubiquinol oxidase subunit 3
IPR010514
Domain description: COX aromatic rich motif
Occurring in:
  1. Cytochrome bo(3) ubiquinol oxidase subunit 2
IPR034227
Domain description: Ubiquinol oxidase subunit 2, cupredoxin domain
Occurring in:
  1. Cytochrome bo(3) ubiquinol oxidase subunit 2
IPR045187
Domain description: Cytochrome c/quinol oxidase subunit II
Occurring in:
  1. Cytochrome bo(3) ubiquinol oxidase subunit 2
IPR011759
Domain description: Cytochrome C oxidase subunit II, transmembrane domain
Occurring in:
  1. Cytochrome bo(3) ubiquinol oxidase subunit 2
IPR023615
Domain description: Cytochrome c oxidase, subunit I, copper-binding site
Occurring in:
  1. Cytochrome bo(3) ubiquinol oxidase subunit 1
IPR023616
Domain description: Cytochrome c oxidase-like, subunit I domain
Occurring in:
  1. Cytochrome bo(3) ubiquinol oxidase subunit 1
IPR014207
Domain description: Cytochrome o ubiquinol oxidase, subunit I
Occurring in:
  1. Cytochrome bo(3) ubiquinol oxidase subunit 1

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