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Complex III2 from candida albicans, inz-5 bound

Analyse Complex III2 from candida albicans, inz-5 bound in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
7RJE
Type
protein
Length
3,818 residues
Chains
18
Method
electron microscopy
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
Cytochrome B; Ubiquinol--cytochrome-C reductase subunit; Cytochrome B-C1 complex subunit…
EC
7.1.1.8
UniProt
P0C8L0, A0A1D8PP59, P83782, A0A1D8PHA3, Q5ABS1, A0A1D8PHA2, A0A1D8PJT8, A0A1D8PLP3, A0A1D8PJX3
Ligands
HEM, ZL5, HEC, FES
Pockets
20 · best druggability 0.86

Structure

electron microscopy · 9 distinct chains · 53% helix, 11% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
K, TCytochrome Bprotein38475% helix, 2% strandP0C8L0
A, EUbiquinol--cytochrome-C reductase subunitprotein41747% helix, 19% strandA0A1D8PP59
B, LCytochrome B-C1 complex subunit 2, mitochondrialprotein36439% helix, 19% strandP83782
D, NUbiquinol--cytochrome-C reductase catalytic subunitprotein24342% helix, 8% strandA0A1D8PHA3
G, PCytochrome B-C1 complex subunit 7protein12270% helix, 1% strandQ5ABS1
F, OUbiquinol--cytochrome-C reductase subunit 8protein8863% helix, 8% strandA0A1D8PHA2
H, QUbiquinol--cytochrome-C reductase subunit 6protein7275% helix, 0% strandA0A1D8PJT8
I, RUbiquinol--cytochrome-C reductase subunit 9protein3889% helix, 0% strandA0A1D8PLP3
C, MCytochrome B-C1 complex subunit rieske, mitochondrial (EC 7.1.1.8)protein18129% helix, 14% strandA0A1D8PJX3

Ligands and binding sites

  • HEM · Protoporphyrin IX containing Fe · ligand · 4 copies · chains K, T
  • ZL5 · 3-[2-fluoro-5-(trifluoromethyl)phenyl]-7-methyl-1-[(2-methyl-2H-tetrazol-5-yl)methyl]-1H-indazole · ligand · 2 copies · chains K, T
  • HEC · Heme C · ligand · 2 copies · chains D, N
  • FES · Fe2/s2 (inorganic) cluster · ligand · 2 copies · chains C, 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
13230.860.9544HEM
23390.840.9342HEM
39250.800.82135FES
49250.790.81128FES
53760.790.8848HEM

Interfaces

53 interfaces between chains.

  • K–G · 1907 Ų buried · 11 hydrogen bonds · protein-protein
  • T–P · 1894 Ų buried · 10 hydrogen bonds · protein-protein
  • E–L · 1769 Ų buried · 11 hydrogen bonds · protein-protein
  • A–B · 1768 Ų buried · 11 hydrogen bonds · protein-protein
  • T–N · 1668 Ų buried · 14 hydrogen bonds · protein-protein

Modifications

Observed in the structure: 6 cofactor, 1 covalent (heme c attachment, heme attachment, covalent ligand).

Compared structures

  • 7RJE · Complex III2 from Candida albicans, Inz-5 bound · the same entry in another collection · chain M against M, TM-score 1.00

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