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MolNFT v1 · #183788 · protein

Murine supercomplex CIII2CIV in the assembled locked conformation

7O37 · Cytochrome B-C1 complex subunit 1, mitochondrial: “Murine supercomplex CIII2CIV in the assembled locked conformation”. Electron microscopy, 13 ligands (3PE, CDL, PC1), 20 pockets (best druggability 0.92). MolNFT v1 #183788 on…

PDB
7O37
Type
protein
Length
5,970 residues
Chains
34
Method
electron microscopy
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
Cytochrome B-C1 complex subunit 1, mitochondrial; Cytochrome B-C1 complex subunit 2…
EC
7.1.1.8, 7.1.1.9
UniProt
Q9CZ13, Q9DB77, P00158, Q9D0M3, Q9CR68, Q9CQB4, Q9CQ69, P99028, Q8R1I1, Q9CPX8, Q99KD6, P00397, P00405, P00416, P19783, P12787, P19536, P43023, P56391, Q9CPQ1, P56393, P17665, P48772
Ligands
3PE, CDL, PC1, HEM, HEC, FES, HEA, TGL, CUA, CU, NA, MG, ZN
Pockets
20 · best druggability 0.92

Structure

electron microscopy · 30 distinct chains · 53% helix, 9% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
ACytochrome B-C1 complex subunit 1, mitochondrialprotein44645% helix, 19% strandQ9CZ13
B, MCytochrome B-C1 complex subunit 2, mitochondrialprotein42045% helix, 21% strandQ9DB77
CCytochrome Bprotein38072% helix, 2% strandP00158
DCytochrome C1, heme protein, mitochondrial (EC 7.1.1.8)protein24138% helix, 7% strandQ9D0M3
E, PCytochrome B-C1 complex subunit rieske, mitochondrial (EC 7.1.1.8)protein19629% helix, 19% strandQ9CR68
FCytochrome B-C1 complex subunit 7protein10267% helix, 0% strandQ9CQB4
GCytochrome B-C1 complex subunit 8protein7457% helix, 9% strandQ9CQ69
H, SCytochrome B-C1 complex subunit 6, mitochondrialprotein6863% helix, 0% strandP99028
J, UCytochrome B-C1 complex subunit 9protein6078% helix, 0% strandQ8R1I1
KCytochrome B-C1 complex subunit 10protein5269% helix, 0% strandQ9CPX8
LCytochrome B-C1 complex subunit 1, mitochondrialprotein44544% helix, 19% strandQ9CZ13
NCytochrome Bprotein38071% helix, 2% strandP00158
OCytochrome C1, heme protein, mitochondrial (EC 7.1.1.8)protein24039% helix, 8% strandQ9D0M3
QCytochrome B-C1 complex subunit 7protein10168% helix, 0% strandQ9CQB4
RCytochrome B-C1 complex subunit 8protein7250% helix, 10% strandQ9CQ69
VCytochrome B-C1 complex subunit 10protein5368% helix, 0% strandQ9CPX8
TCytochrome B-C1 complex subunit 9protein7810% helix, 18% strandQ9CR68
ICOX7A2L proteinprotein11139% helix, 9% strandQ99KD6
aCytochrome C oxidase subunit 1 (EC 7.1.1.9)protein51471% helix, 1% strandP00397
bCytochrome C oxidase subunit 2 (EC 7.1.1.9)protein22730% helix, 26% strandP00405
cCytochrome C oxidase subunit 3 (EC 7.1.1.9)protein25973% helix, 0% strandP00416
dCytochrome C oxidase subunit 4 isoform 1, mitochondrialprotein14447% helix, 4% strandP19783
eCytochrome C oxidase subunit 5A, mitochondrialprotein10463% helix, 1% strandP12787
fCytochrome C oxidase subunit 5B, mitochondrialprotein9511% helix, 22% strandP19536
gCytochrome C oxidase subunit 6A2, mitochondrialprotein7532% helix, 3% strandP43023
hCytochrome C oxidase subunit 6B1protein7959% helix, 1% strandP56391
iCytochrome C oxidase subunit 6Cprotein7269% helix, 1% strandQ9CPQ1
kCytochrome C oxidase subunit 7B, mitochondrialprotein4951% helix, 0% strandP56393
lCytochrome C oxidase subunit 7C, mitochondrialprotein4663% helix, 0% strandP17665
mCytochrome C oxidase subunit 8B, mitochondrialprotein4349% helix, 2% strandP48772

Ligands and binding sites

  • 3PE · 1,2-diacyl-sn-glycero-3-phosphoethanolamine · ligand · 16 copies · chains A, C, D, G, E, J, F, l, m, L, N, R, O, P, U, Q, a, d, c, b, i, g, k
  • CDL · Cardiolipin · ligand · 6 copies · chains A, C, K, D, F, G, L, N, V, O, Q, R
  • PC1 · 1,2-diacyl-sn-glycero-3-phosphocholine · ligand · 5 copies · chains A, C, D, E, J, K, G, I, a, l, m, L, O, P, U, b
  • HEM · Protoporphyrin IX containing Fe · ligand · 4 copies · chains C, N
  • HEC · Heme C · ligand · 2 copies · chains D, P, O
  • FES · Fe2/s2 (inorganic) cluster · ligand · 2 copies · chains E, P
  • HEA · Heme-A · ligand · 2 copies · chains a, b
  • TGL · Tristearoylglycerol · ligand · chains G, a, l
  • CUA · Dinuclear copper ion · ligand · chains b
  • CU · Copper (II) ion · metal · chains a
  • NA · Sodium ion · metal · chains a
  • MG · Magnesium ion · metal · chains a, b
  • ZN · Zinc ion · metal · chains f

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
110870.920.94120HEA
210320.870.871093PE
34600.860.9352HEM
44180.860.9457empty
56690.850.89105empty

Interfaces

113 interfaces between chains.

  • a–b · 3477 Ų buried · 25 hydrogen bonds · protein-protein
  • a–c · 2665 Ų buried · 13 hydrogen bonds · protein-protein
  • A–B · 2102 Ų buried · 28 hydrogen bonds · protein-protein
  • L–M · 2075 Ų buried · 28 hydrogen bonds · protein-protein
  • a–l · 1763 Ų buried · 12 hydrogen bonds · protein-protein

Modifications

Observed in the structure: 8 disulfide, 4 cofactor, 1 covalent (disulfide, heme c attachment, covalent ligand).

Compared structures

  • 7O37 · Murine supercomplex CIII2CIV in the assembled locked conformation · the same entry in another collection · chain L against L, TM-score 1.00

Analyse

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