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MolNFT v1 · #4429 · protein

Structural analyses of human myeloperoxidase-thiocyanate complex

1DNU: “Structural analyses of human myeloperoxidase-thiocyanate complex”. X-ray diffraction, 8 ligands (HEM, NAG, MAN), 12 pockets (best druggability 0.80). MolNFT v1 #4429 on GenesisL1: 3D structure, binding sites and pockets in GL1X.

PDB
1DNU
Type
protein
Length
1,140 residues
Chains
4
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
Myeloperoxidase
EC
1.11.1.7
UniProt
P05164
Ligands
HEM, NAG, MAN, BMA, FUC, CA, SCN, SO4
Pockets
12 · best druggability 0.80

Structure

x-ray diffraction · 2 distinct chains · 38% helix, 9% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
A, BMyeloperoxidase (EC 1.11.1.7)protein10425% helix, 11% strandP05164
C, DMyeloperoxidase (EC 1.11.1.7)protein46641% helix, 9% strandP05164

Ligands and binding sites

  • HEM · Protoporphyrin IX containing Fe · ligand · 2 copies · chains A, C, B, D
  • NAG · 2-acetamido-2-deoxy-beta-D-glucopyranose · sugar · 8 copies · chains C, D, B, A
  • MAN · alpha-D-mannopyranose · sugar · 4 copies · chains D, B, C, A
  • BMA · beta-D-mannopyranose · sugar · 2 copies · chains D, C
  • FUC · alpha-L-fucopyranose · sugar · 2 copies · chains C, D
  • CA · Calcium ion · metal · 2 copies · chains A, C, B, D
  • SCN · Thiocyanate ion · ion · 4 copies · chains A, C, B, D
  • SO4 · Sulfate ion · ion · 3 copies · chains A, C, B, D
  • ACY · Acetic acid · additive · 6 copies · chains C, D

Binding sites are the residues within 4.5 Å of a ligand's heavy atoms.

Pockets

12 pockets found on a 1 Å grid, 4 with a druggability of 0.5 or more.

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
17610.800.8456SCN, HEM
27260.800.8467empty
37330.790.8355SCN, HEM
4780.530.8521empty
5810.460.8127empty

Interfaces

6 interfaces between chains.

  • A–C · 5729 Ų buried · 104 hydrogen bonds · protein-protein
  • B–D · 5648 Ų buried · 105 hydrogen bonds · protein-protein
  • A–B · 628 Ų buried · 4 hydrogen bonds · protein-protein
  • C–D · 382 Ų buried · 3 hydrogen bonds · protein-protein
  • C–B · 258 Ų buried · 1 hydrogen bond · protein-protein

Modifications

Observed in the structure: 13 disulfide, 6 cofactor, 6 glycan, 2 modified (disulfide, heme attachment, N-glycosylation, oxidation).

Compared structures

  • 1DNU · Structural analyses of human myeloperoxidase-thiocyanate complex · the same entry in another collection · chain A against A, TM-score 1.00
  • P05164 · AlphaFold monomer V2.0 prediction for myeloperoxidase (P05164) · a predicted model of the same protein · chain C against A, TM-score 0.98

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