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Bovine heart cytochrome c oxidase in the carbon monoxide-bound fully reduced state at a 50 K

Analyse Bovine heart cytochrome c oxidase in the carbon monoxide-bound fully reduced… in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
7EV7
Type
protein
Length
3,550 residues
Chains
26
Method
x-ray diffraction
Collection
MolNFT v2 / PDB Bank
Contract
0xd58B01f6C18086e5202cdC5D7Ad3E41790360102
Owner
0xF4e1AA6f26B7DA48EeAD9B24a97927303eeA07b8
Resolution
1.7
Source
Bos taurus
Molecule
Cytochrome c oxidase subunit 1; Cytochrome c oxidase subunit 2; Cytochrome c oxidase…
EC
7.1.1.9
UniProt
P00396, P68530, P00415, P00423, P00426, P00428, P07471, P00429, P04038, P07470, P13183, P00430, P10175
Ligands
CHD, PGV, TGL, PEK, HEA, CDL, PSC, CUA, NA, CU, MG, ZN, CMO, PO4
Pockets
20 · best druggability 0.91

Structure

x-ray diffraction · resolution 1.7 · 13 distinct chains · 59% helix, 6% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
A, NCytochrome c oxidase subunit 1 (EC 7.1.1.9)protein51472% helix, 1% strandP00396
B, OCytochrome c oxidase subunit 2 (EC 7.1.1.9)protein22735% helix, 27% strandP68530
C, PCytochrome c oxidase subunit 3 (EC 7.1.1.9)protein25976% helix, 0% strandP00415
D, QCytochrome c oxidase subunit 4 isoform 1protein14452% helix, 3% strandP00423
E, RCytochrome c oxidase subunit 5Aprotein10564% helix, 1% strandP00426
F, SCytochrome c oxidase subunit 5B, mitochondrialprotein9416% helix, 28% strandP00428
G, TCytochrome c oxidase subunit 6A2protein8430% helix, 2% strandP07471
H, UCytochrome c oxidase subunit 6B1protein7961% helix, 1% strandP00429
I, VCytochrome c oxidase subunit 6Cprotein7370% helix, 1% strandP04038
J, WCytochrome c oxidase subunit 7A1protein5867% helix, 0% strandP07470
K, XCytochrome c oxidase subunit 7Bprotein4955% helix, 0% strandP13183
L, YCytochrome c oxidase subunit 7C, mitochondrialprotein4663% helix, 0% strandP00430
M, ZCytochrome c oxidase subunit 8Bprotein4367% helix, 2% strandP10175

Ligands and binding sites

  • CHD · Cholic acid · ligand · 11 copies · chains A, B, T, C, P, J, G, N, O, W, Y
  • PGV · (1R)-2-{[{[(2S)-2,3-dihydroxypropyl]oxy}(hydroxy) phosphoryl]oxy}-1-[(palmitoyloxy)methyl]ethyl (11E)-octadec-11-enoate · ligand · 8 copies · chains A, D, K, M, C, F, H, P, T, N, Q, X, Z, S, G, U
  • TGL · Tristearoylglycerol · ligand · 6 copies · chains A, B, I, D, L, N, O, V, Q, Y
  • PEK · (1S)-2-{[(2-aminoethoxy)(hydroxy)phosphoryl]oxy}-1-[(stearoyloxy)methyl]ethyl (5E,8E,11E,14E)-icosa-5,8, 11,14-tetraenoate · ligand · 6 copies · chains C, T, A, G, F, N, O, P, B, S
  • HEA · Heme-A · ligand · 4 copies · chains A, B, N, O
  • CDL · Cardiolipin · ligand · 4 copies · chains C, J, G, N, O, P, W, A, B, T
  • PSC · (7R,17E,20E)-4-hydroxy-N,N,N-trimethyl-9-oxo-7-[(palmitoyloxy)methyl]-3,5,8-trioxa-4-phosphahexacosa-17,20-dien-1-aminium 4-oxide · ligand · 2 copies · chains A, B, E, I, N, O, R, V
  • CUA · Dinuclear copper ion · ligand · 2 copies · chains B, O
  • NA · Sodium ion · metal · 4 copies · chains A, C, N, P
  • CU · Copper (II) ion · metal · 2 copies · chains A, N
  • MG · Magnesium ion · metal · 2 copies · chains A, B, N, O
  • ZN · Zinc ion · metal · 2 copies · chains F, S
  • CMO · Carbon monoxide · ion · 2 copies · chains A, N
  • PO4 · Phosphate ion · ion · 2 copies · chains H, U
  • EDO · 1,2-ethanediol · additive · 135 copies · chains A, M, B, F, D, L, I, C, H, J, G, K, E, S, N, Z, Q, X, Y, O, P, U, T, W, R, V
  • DMU · Decyl-beta-D-maltopyranoside · additive · 11 copies · chains A, C, J, G, D, L, M, N, P, W, T, O, V, Q, Y, Z

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
110630.910.93123HEA, CU, CMO
211860.910.93132HEA, CMO
37820.860.8982PGV
410850.860.8785PGV
59930.840.8593EDO

Interfaces

80 interfaces between chains.

  • A–B · 3577 Ų buried · 32 hydrogen bonds · protein-protein
  • N–O · 3558 Ų buried · 34 hydrogen bonds · protein-protein
  • N–P · 2634 Ų buried · 17 hydrogen bonds · protein-protein
  • A–C · 2631 Ų buried · 18 hydrogen bonds · protein-protein
  • N–Y · 1790 Ų buried · 19 hydrogen bonds · protein-protein

Modifications

Observed in the structure: 8 modified, 4 disulfide, 1 covalent (disulfide, formylation, acetylation, phosphorylation, additive adduct).

Compared structures

  • 7EV7 · Bovine heart cytochrome C oxidase in the carbon monoxide-bound fully reduced state at a… · the same entry in another collection · chain K against K, TM-score 1.00

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