8b6h

Electron Microscopy
2.6Å resolution

Cryo-EM structure of cytochrome c oxidase dimer (complex IV) from respiratory supercomplex of Tetrahymena thermophila

Released:

Function and Biology Details

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

Structure analysis Details

Assembly composition:
hetero 106-mer (preferred)
PDBe Complex ID:
PDB-CPX-269844 (preferred)
Entry contents:
53 distinct polypeptide molecules
Macromolecules (53 distinct):
Cytochrome c oxidase subunit 1 Chains: DA, Da
Molecule details ›
Chains: DA, Da
Length: 688 amino acids
Theoretical weight: 80.58 KDa
Source organism: Tetrahymena thermophila SB210
Cytochrome c oxidase polypeptide II Chains: DB, Db
Molecule details ›
Chains: DB, Db
Length: 604 amino acids
Theoretical weight: 72.39 KDa
Source organism: Tetrahymena thermophila SB210
Ymf68 Chains: DC, Dc
Cytochrome C oxidase subunit Vb protein Chains: DD, Dd
Transmembrane protein, putative Chains: DE, De
Structural protein Chains: DF, Df
Transmembrane protein, putative Chains: DG, Dg
Transmembrane protein, putative Chains: DH, Dh
Transmembrane protein Chains: DI, Di
Transmembrane protein, putative Chains: DJ, Dj
CTF/NF-I domain-containing protein Chains: DK, Dk
Transmembrane protein, putative Chains: DM, Dm
Ymf67 Chains: DN, Dn
Protein phosphatase 2C, putative Chains: DO, Do
SURF1-like protein Chains: DP, Dp
TraB family protein Chains: DQ, Dq
Transmembrane protein, putative Chains: DR, Dr
Oxoglutarate/malate translocator protein, putative Chains: DS, Ds
NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 8, mitochondrial Chains: DT, Dt
Carrier protein Chains: DU, Du
2-oxoglutarate/malate carrier protein Chains: DV, Dv
SURF1-like protein Chains: DW, Dw
Transmembrane protein Chains: DX, Dx
Transmembrane protein Chains: DY, Dy
39S ribosomal protein L9, mitochondrial Chains: DZ, Dz
Transmembrane protein Chains: EA, Ea
Transmembrane protein, putative Chains: EB, Eb
COXTT27 Chains: EC, Ec
Ymf75 Chains: ED, Ed
Mobilization protein Chains: EE, Ee
Iron-binding zinc finger CDGSH type domain-containing protein Chains: EF, Ef
COXTT28 Chains: EG, Eg
Transmembrane protein, putative Chains: EH, Eh
Transmembrane protein Chains: EI, Ei
Decapping nuclease Chains: EV, Ev
Complex III subunit VII Chains: EK, Ek
Transmembrane protein, putative Chains: EL, El
Transmembrane protein, putative Chains: EM, Em
Transmembrane protein Chains: EN, En
Transmembrane protein, putative Chains: EO, Eo
Phage protein Chains: EP, Ep
Transmembrane protein, putative Chains: EQ, Eq
Lysozyme Chains: ER, Er
Ymf70 Chains: ES, Es
Tim10/DDP family zinc finger protein Chains: ET, Et
Transmembrane protein Chains: EU, Eu
YflT domain-containing protein Chains: EJ, Ej
Cullin domain-containing protein Chains: EW, Ew
Tim10/DDP family zinc finger protein Chains: EX, Ex
Annexin Chains: EY, Ey
Transposase Chains: EZ, Ez
Mitochondrial import inner membrane translocase subunit Chains: FA, Fa
Chromosome condensation regulator RCC1 repeat protein Chains: DL, Dl

Ligands and Environments

Experiments and Validation Details

Entry percentile scores
Resolution: 2.6Å
Relevant EMDB volumes: EMD-15867