6adq

Electron Microscopy
3.5Å resolution

Respiratory Complex CIII2CIV2SOD2 from Mycobacterium smegmatis

Released:

Function and Biology Details

Reactions catalysed:
4 ferrocytochrome c + O(2) + 8 H(+)(Side 1) = 4 ferricytochrome c + 4 H(2)O(Side 2)
2 superoxide + 2 H(+) = O(2) + H(2)O(2)
Quinol + 2 ferricytochrome c(Side 2) = quinone + 2 ferrocytochrome c(Side 2) + 2 H(+)(Side 2)
Biochemical function:
  • not assigned
Biological process:
  • not assigned
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
hetero 24-mer (preferred)
PDBe Complex ID:
PDB-CPX-106254 (preferred)
Entry contents:
12 distinct polypeptide molecules
Macromolecules (12 distinct):
cytochrome-c oxidase Chains: E, Q
Molecule details ›
Chains: E, Q
Length: 341 amino acids
Theoretical weight: 38.08 KDa
Source organism: Mycolicibacterium smegmatis MC2 51
Cytochrome c oxidase subunit 1 Chains: F, R
Molecule details ›
Chains: F, R
Length: 575 amino acids
Theoretical weight: 64.16 KDa
Source organism: Mycolicibacterium smegmatis MC2 51
Probable cytochrome c oxidase subunit 3 Chains: G, S
Cytochrome c oxidase polypeptide 4 Chains: H, T
Cytochrome c oxidase subunit CtaJ Chains: I, U
Uncharacterized protein MSMEG_4692/MSMEI_4575 Chains: J, V
Transmembrane protein Chains: D, P
Superoxide dismutase [Cu-Zn] Chains: Y, Z
LpqE protein Chains: K, W
Cytochrome bc1 complex cytochrome b subunit Chains: B, N
Cytochrome bc1 complex cytochrome c subunit Chains: C, O
Cytochrome bc1 complex Rieske iron-sulfur subunit Chains: A, M

Ligands and Environments

Experiments and Validation Details

Entry percentile scores
Resolution: 3.5Å
Relevant EMDB volumes: EMD-9610