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MolNFT v1 · #4211 · protein

Human erythrocyte catalase 3-amino-1,2,4-triazole complex

1DGH · Protein (catalase): “Human erythrocyte catalase 3-amino-1,2,4-triazole complex”. X-ray diffraction, 2 ligands (HEM, NDP), 20 pockets (best druggability 0.88). MolNFT v1 #4211 on GenesisL1: 3D structure, binding sites and pockets in…

PDB
1DGH
Type
protein
Length
1,991 residues
Chains
4
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
Protein (catalase)
EC
1.11.1.6
UniProt
P04040
Ligands
HEM, NDP
Pockets
20 · best druggability 0.88

Structure

x-ray diffraction · 3 distinct chains · 33% helix, 19% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
AProtein (catalase) (EC 1.11.1.6)protein49734% helix, 19% strandP04040
B, DProtein (catalase) (EC 1.11.1.6)protein49833% helix, 18% strandP04040
CProtein (catalase) (EC 1.11.1.6)protein49833% helix, 18% strandP04040

Ligands and binding sites

  • HEM · Protoporphyrin IX containing Fe · ligand · 4 copies · chains A, C, B, D
  • NDP · Nadph dihydro-nicotinamide-adenine-dinucleotide phosphate · ligand · 2 copies · chains A, C

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
14190.880.9652empty
26780.880.9252empty
34040.870.9551empty
42640.850.9646HEM
52710.850.9645HEM

Interfaces

6 interfaces between chains.

  • B–D · 4966 Ų buried · 81 hydrogen bonds · protein-protein
  • A–C · 4950 Ų buried · 79 hydrogen bonds · protein-protein
  • C–D · 4709 Ų buried · 50 hydrogen bonds · protein-protein
  • A–B · 4699 Ų buried · 55 hydrogen bonds · protein-protein
  • A–D · 2104 Ų buried · 34 hydrogen bonds · protein-protein

Modifications

Observed in the structure: 2 modified (nonstandard).

Compared structures

  • 1DGH · Human erythrocyte catalase 3-amino-1,2,4-triazole complex · the same entry in another collection · chain D against D, TM-score 1.00
  • P04040 · AlphaFold monomer V2.0 prediction for catalase (P04040) · a predicted model of the same protein · chain A against A, TM-score 1.00

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