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Trypanosoma brucei PTR1 in complex with the triazine inhibitor 1 (F217)

Analyse Trypanosoma brucei PTR1 in complex with the triazine inhibitor 1 (F217) in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
6HNR
Type
protein
Length
994 residues
Chains
4
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
Pteridine reductase
UniProt
O76290
Ligands
NAP, GFE
Pockets
7 · best druggability 0.83

Structure

x-ray diffraction · 3 distinct chains · 47% helix, 15% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
A, DPteridine reductaseprotein24947% helix, 15% strandO76290
BPteridine reductaseprotein24847% helix, 15% strandO76290
CPteridine reductaseprotein24847% helix, 15% strandO76290

Ligands and binding sites

  • NAP · Nadp nicotinamide-adenine-dinucleotide phosphate · ligand · 4 copies · chains A, B, C, D
  • GFE · 1-(3,4-dichlorophenyl)-6,6-dimethyl-1,3,5-triazine-2,4-diamine · ligand · 4 copies · chains A, B, C, D
  • ACT · Acetate ion · additive · 2 copies · chains B, C
  • GOL · Glycerol · additive · chains C

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

Pockets

7 pockets found on a 1 Å grid, 5 with a druggability of 0.5 or more.

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
111000.830.8470empty
26480.760.8248NAP, GFE
36450.760.8248NAP, GFE
46390.760.8247NAP, GFE
56560.760.8151NAP, GFE

Interfaces

6 interfaces between chains.

  • A–D · 1903 Ų buried · 18 hydrogen bonds · protein-protein
  • B–C · 1841 Ų buried · 16 hydrogen bonds · protein-protein
  • A–C · 1412 Ų buried · 11 hydrogen bonds · protein-protein
  • B–D · 1402 Ų buried · 10 hydrogen bonds · protein-protein
  • A–B · 567 Ų buried · 3 hydrogen bonds · protein-protein

Modifications

Observed in the structure: 2 modified (oxidation).

Compared structures

  • 6HNR · Trypanosoma brucei PTR1 in complex with the triazine inhibitor 1 (F217) · the same entry in another collection · chain A against A, TM-score 1.00

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