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MolNFT v1 · #126159 · protein

Cryo-EM of bovine respirasome

5LUF · Cytochrome B-C1 complex subunit 1, mitochondrial: “Cryo-EM of bovine respirasome”. Electron microscopy, 8 ligands (SF4, HEM, FES), 20 pockets (best druggability 0.92). MolNFT v1 #126159 on GenesisL1: 3D structure, binding sites and…

PDB
5LUF
Type
protein
Length
11,468 residues
Chains
62
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
1.10.2.2, 1.9.3.1
UniProt
P31800, P23004, P00157, P00125, P13272, P00129, P13271, P00126, P00130, P07552, P00396, P68530, P00415, P00423, P00426, P00428, P07471, P00429, P04038, P07470, P13183, P00430, P10175
Ligands
SF4, HEM, FES, HEC, HEA, CU, MG, ZN
Pockets
20 · best druggability 0.92

Structure

electron microscopy · 50 distinct chains · 57% helix, 7% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
c, lCytochrome B-C1 complex subunit 1, mitochondrialprotein44646% helix, 16% strandP31800
m, nCytochrome B-C1 complex subunit 2, mitochondrialprotein41946% helix, 16% strandP23004
b, oCytochrome Bprotein37969% helix, 2% strandP00157
d, pCytochrome C1, heme protein, mitochondrialprotein24141% helix, 3% strandP00125
eCytochrome B-C1 complex subunit rieske, mitochondrial (EC 1.10.2.2)protein7559% helix, 1% strandP13272
f, rCytochrome B-C1 complex subunit 7protein10667% helix, 0% strandP00129
g, sCytochrome B-C1 complex subunit 8protein8157% helix, 9% strandP13271
h, tCytochrome B-C1 complex subunit 6, mitochondrialprotein6478% helix, 0% strandP00126
i, uCytochrome B-C1 complex subunit rieske, mitochondrial (EC 1.10.2.2)protein330% helix, 21% strandP13272
j, vCytochrome B-C1 complex subunit 9protein6269% helix, 0% strandP00130
k, wCytochrome B-C1 complex subunit 10protein2286% helix, 0% strandP07552
qCytochrome B-C1 complex subunit rieske, mitochondrial (EC 1.10.2.2)protein19632% helix, 18% strandP13272
xCytochrome C oxidase subunit 1 (EC 1.9.3.1)protein51471% helix, 2% strandP00396
yCytochrome C oxidase subunit 2protein22733% helix, 26% strandP68530
zCytochrome C oxidase subunit 3protein26176% helix, 1% strandP00415
1Cytochrome C oxidase subunit 4 isoform 1, mitochondrialprotein14454% helix, 4% strandP00423
2Cytochrome C oxidase subunit 5A, mitochondrialprotein10965% helix, 1% strandP00426
3Cytochrome C oxidase subunit 5B, mitochondrialprotein9815% helix, 30% strandP00428
4Cytochrome C oxidase subunit 6A2, mitochondrialprotein8430% helix, 0% strandP07471
5Cytochrome C oxidase subunit 6B1protein7556% helix, 1% strandP00429
6Cytochrome C oxidase subunit 6Cprotein7371% helix, 1% strandP04038
7Cytochrome C oxidase subunit 7A1, mitochondrialprotein5668% helix, 0% strandP07470
8Cytochrome C oxidase subunit 7B, mitochondrialprotein4955% helix, 0% strandP13183
9Cytochrome C oxidase subunit 7C, mitochondrialprotein4757% helix, 0% strandP00430
0Cytochrome C oxidase subunit 8B, mitochondrialprotein4367% helix, 5% strandP10175
AComplex Iprotein8383% helix, 0% strand—
BComplex Iprotein14338% helix, 10% strand—
CComplex Iprotein15423% helix, 24% strand—
DComplex Iprotein38446% helix, 10% strand—
EComplex Iprotein15945% helix, 9% strand—
FComplex Iprotein41149% helix, 11% strand—
GComplex Iprotein52731% helix, 12% strand—
HComplex Iprotein28573% helix, 0% strand—
IComplex Iprotein16235% helix, 13% strand—
JComplex Iprotein13182% helix, 0% strand—
KComplex Iprotein8481% helix, 0% strand—
LComplex Iprotein55873% helix, 2% strand—
MComplex Iprotein43972% helix, 0% strand—
NComplex Iprotein32679% helix, 0% strand—
OComplex Iprotein18155% helix, 5% strand—
PComplex Iprotein25239% helix, 15% strand—
QComplex Iprotein6916% helix, 25% strand—
RComplex Iprotein470% helix, 40% strand—
SComplex Iprotein8035% helix, 24% strand—
T, V, aComplex Iprotein7163% helix, 3% strand—
WComplex Iprotein7276% helix, 0% strand—
XComplex Iprotein32977% helix, 1% strand—
YComplex Iprotein10679% helix, 0% strand—
UComplex Iprotein25084% helix, 0% strand—
ZComplex Iprotein26671% helix, 1% strand—

Ligands and binding sites

  • SF4 · Iron/sulfur cluster · ligand · 6 copies · chains B, F, G, I
  • HEM · Protoporphyrin IX containing Fe · ligand · 4 copies · chains b, o
  • FES · Fe2/s2 (inorganic) cluster · ligand · 3 copies · chains q, E, F, G
  • HEC · Heme C · ligand · 2 copies · chains d, p
  • HEA · Heme-A · ligand · 2 copies · chains x, y
  • CU · Copper (II) ion · metal · 3 copies · chains x, y
  • MG · Magnesium ion · metal · chains x, y
  • ZN · Zinc ion · metal · chains 3

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
110560.920.94120MG, HEA
25270.870.9362HEM
35280.870.9364HEM
410310.850.86180empty
59740.850.8685empty

Interfaces

154 interfaces between chains.

  • x–y · 3545 Ų buried · 33 hydrogen bonds · protein-protein
  • x–z · 2701 Ų buried · 21 hydrogen bonds · protein-protein
  • l–n · 2102 Ų buried · 31 hydrogen bonds · protein-protein
  • c–m · 2096 Ų buried · 30 hydrogen bonds · protein-protein
  • x–9 · 1764 Ų buried · 17 hydrogen bonds · protein-protein

Modifications

Observed in the structure: 7 disulfide, 4 cofactor (disulfide, heme c attachment).

Compared structures

  • 5LUF · Cryo-EM of bovine respirasome · the same entry in another collection · chain i against i, TM-score 1.00

Analyse

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