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Mycobacterial CIII2CIV2 supercomplex, inhibitor free

Analyse Mycobacterial CIII2CIV2 supercomplex, inhibitor free in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
7RH5
Type
protein
Length
6,072 residues
Chains
24
Method
electron microscopy
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
Cytochrome C oxidase subunit 1; Cytochrome BC1 complex cytochrome B subunit; Superoxide…
EC
7.1.1.9, 7.1.1.8, 1.15.1.1
UniProt
I7FGS8, I7G2H6, I7GD63, A0R049, I7FPH7, I7FQK8, A0R1B5, I7FPH1, I7GFE1, I7GD61
Ligands
CDL, MQ9, 9YF, 9Y0, HEA, HEM, PLM, 9XX, HEC, FES, CU
Pockets
20 · best druggability 0.90

Structure

electron microscopy · 12 distinct chains · 47% helix, 10% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
R, LCytochrome C oxidase subunit 1 (EC 7.1.1.9)protein55268% helix, 1% strand—
E, FCytochrome BC1 complex cytochrome B subunit (EC 7.1.1.8)protein53563% helix, 5% strandI7FGS8
D, GSuperoxide dismutase [cu-zn] (EC 1.15.1.1)protein2164% helix, 23% strandI7G2H6
Q, KCytochrome AA3 subunit 2 (EC 7.1.1.9)protein31228% helix, 20% strandI7GD63
S, XCytochrome AA3 subunit 3protein20374% helix, 0% strandA0R049
T, ZCytochrome C oxidase polypeptide 4 (EC 7.1.1.9)protein13966% helix, 1% strandI7FPH7
U, aCytochrome C oxidase subunit ctajprotein7929% helix, 6% strandI7FQK8
V, bUncharacterized protein MSMEG_4692/MSMEI_4575protein14541% helix, 16% strandA0R1B5
P, JPutative conserved transmembrane proteinprotein9250% helix, 0% strand—
O, ICytochrome BC1 complex cytochrome C subunit (EC 7.1.1.8)protein22344% helix, 4% strandI7FPH1
c, WLpqe proteinprotein1580% helix, 30% strandI7GFE1
Y, MCytochrome BC1 complex rieske iron-sulfur subunitprotein38235% helix, 17% strandI7GD61

Ligands and binding sites

  • CDL · Cardiolipin · ligand · 16 copies · chains R, F, E, I, O, L, S, T, M, P, X, Z, Y, J
  • MQ9 · Menaquinone-9 · ligand · 8 copies · chains E, Y, M, F, R, T, O, L, Z, I
  • 9YF · (2R)-2-(hexadecanoyloxy)-3-{[(S)-hydroxy{[(1r,2r,3r,4r, 5R,6S)-2,3,4,5,6-pentahydroxycyclohexyl]oxy}phosphoryl]oxy}propyl (9S)-9-methyloctadecanoate · ligand · 8 copies · chains F, T, O, E, L, J, c, I, Z, Y, M, R, P, W
  • 9Y0 · (2R)-3-(((2-aminoethoxy)(hydroxy)phosphoryl)oxy)-2-(palmitoyloxy)propyl (E)-octadec-9-enoate · ligand · 6 copies · chains F, P, R, S, T, Q, W, L, X, Z, E, J, K, c
  • HEA · Heme-A · ligand · 4 copies · chains R, Q, L, K
  • HEM · Protoporphyrin IX containing Fe · ligand · 4 copies · chains E, F
  • PLM · Palmitic acid · ligand · 4 copies · chains E, D, J, F, G, P, L, c, R, W
  • 9XX · (2S)-1-(hexadecanoyloxy)propan-2-yl (10S)-10-methyloctadecanoate · ligand · 4 copies · chains E, D, F, G, L, J, c, R, P, W
  • HEC · Heme C · ligand · 4 copies · chains Q, O, W, M, K, c, I, Y
  • FES · Fe2/s2 (inorganic) cluster · ligand · 2 copies · chains Y, M
  • CU · Copper (II) ion · metal · 6 copies · chains R, L, Q, K

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
19120.900.9291CU, HEA
29740.900.91104HEA
39120.870.8859CDL
411120.860.8678CDL
56500.850.8976HEM

Interfaces

83 interfaces between chains.

  • F–M · 4748 Ų buried · 56 hydrogen bonds · protein-protein
  • E–Y · 4717 Ų buried · 57 hydrogen bonds · protein-protein
  • R–Q · 4532 Ų buried · 49 hydrogen bonds · protein-protein
  • L–K · 4521 Ų buried · 51 hydrogen bonds · protein-protein
  • Y–M · 2909 Ų buried · 10 hydrogen bonds · protein-protein

Modifications

Observed in the structure: 8 covalent, 4 lipid, 2 disulfide (covalent ligand, palmitoylation, disulfide).

Compared structures

  • 7RH5 · Mycobacterial CIII2CIV2 supercomplex, Inhibitor free · the same entry in another collection · chain R against R, TM-score 1.00

Analyse

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