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MolNFT v1 · #116635 · protein

The structure of CBB3 cytochrome oxidase.

5DJQ · CBB3-type cytochrome C oxidase subunit CCON1: “The structure of CBB3 cytochrome oxidase.”. X-ray diffraction, 7 ligands (HEC, HEM, PEO), 20 pockets (best druggability 0.90). MolNFT v1 #116635 on GenesisL1: 3D structure, binding…

PDB
5DJQ
Type
protein
Length
3,975 residues
Chains
16
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
CBB3-type cytochrome C oxidase subunit CCON1; CBB3-type cytochrome C oxidase subunit II…
EC
1.9.3.1
UniProt
D9IA43, D9IA44, D9IA45, H7ESS5
Ligands
HEC, HEM, PEO, FC6, CA, CU, PO4
Pockets
20 · best druggability 0.90

Structure

x-ray diffraction · 6 distinct chains · 69% helix, 3% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
ACBB3-type cytochrome C oxidase subunit CCON1 (EC 1.9.3.1)protein46675% helix, 3% strandD9IA43
B, E, H, LCBB3-type cytochrome C oxidase subunit IIprotein19745% helix, 2% strandD9IA44
C, F, I, MCBB3-type cytochrome C oxidase subunit CCOP1protein30355% helix, 5% strandD9IA45
DCBB3-type cytochrome C oxidase subunit CCON1 (EC 1.9.3.1)protein46376% helix, 3% strandD9IA43
G, KCBB3-type cytochrome C oxidase subunit CCON1 (EC 1.9.3.1)protein46576% helix, 3% strandD9IA43
N, O, P, QPutative uncharacterized proteinprotein2983% helix, 0% strandH7ESS5

Ligands and binding sites

  • HEC · Heme C · ligand · 12 copies · chains A, B, C, I, D, E, F, G, H, K, L, M
  • HEM · Protoporphyrin IX containing Fe · ligand · 8 copies · chains A, B, D, E, G, H, K, L
  • PEO · Hydrogen peroxide · ligand · 4 copies · chains A, D, G, K
  • FC6 · Hexacyanoferrate(3-) · ligand · 4 copies · chains C, M, F, I
  • CA · Calcium ion · metal · 8 copies · chains A, B, D, E, G, H, K, L
  • CU · Copper (II) ion · metal · 4 copies · chains A, D, G, K
  • PO4 · Phosphate ion · ion · 4 copies · chains A, C, D, F, G, I, K, M

Binding sites are the residues within 4.5 Å of a ligand's heavy atoms.

Pockets

20 pockets found on a 1 Å grid, 20 with a druggability of 0.5 or more.

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
18890.900.92124HEC, FC6
27680.900.93109HEC
35240.880.9470HEM, PEO, CA
43820.870.9667HEC
54960.870.9468HEM, PEO, CA

Interfaces

30 interfaces between chains.

  • G–H · 3764 Ų buried · 27 hydrogen bonds · protein-protein
  • A–B · 3760 Ų buried · 24 hydrogen bonds · protein-protein
  • K–L · 3746 Ų buried · 27 hydrogen bonds · protein-protein
  • D–E · 3731 Ų buried · 27 hydrogen bonds · protein-protein
  • A–C · 2558 Ų buried · 29 hydrogen bonds · protein-protein

Modifications

Observed in the structure: 24 cofactor (heme c attachment).

Compared structures

  • 5DJQ · The structure of CBB3 cytochrome oxidase. · the same entry in another collection · chain Q against Q, TM-score 1.00

Analyse

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