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Structure of PTR1 from trypanosoma brucei in ternary complex with 2,4- diamino-5-[2-(2,5-DIMETHOXYPHENYL)ETHYL]THIENO[2,3-D]-pyrimidine and NADP+

Analyse Structure of PTR1 from trypanosoma brucei in ternary complex with 2,4… in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
3MCV
Type
protein
Length
1,000 residues
Chains
4
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
Pteridine reductase
EC
1.5.1.33
UniProt
O76290
Ligands
NAP, MCV
Pockets
8 · best druggability 0.83

Structure

x-ray diffraction · 4 distinct chains · 47% helix, 15% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
APteridine reductase (EC 1.5.1.33)protein25147% helix, 15% strandO76290
BPteridine reductase (EC 1.5.1.33)protein25147% helix, 14% strandO76290
CPteridine reductase (EC 1.5.1.33)protein24848% helix, 15% strandO76290
DPteridine reductase (EC 1.5.1.33)protein25048% helix, 15% strandO76290

Ligands and binding sites

  • NAP · Nadp nicotinamide-adenine-dinucleotide phosphate · ligand · 4 copies · chains A, B, C, D
  • MCV · 5-[2-(2,5-dimethoxyphenyl)ethyl]thieno[2,3-d]pyrimidine-2,4-diamine · ligand · 4 copies · chains A, B, C, D
  • ACT · Acetate ion · additive · 4 copies · chains A, B, D

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

Pockets

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

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
111380.830.8469empty
26220.770.8354NAP, MCV, ACT
36240.770.8350NAP, MCV
46120.770.8348NAP, MCV
55780.760.8246NAP, MCV

Interfaces

6 interfaces between chains.

  • A–C · 1868 Ų buried · 11 hydrogen bonds · protein-protein
  • B–D · 1859 Ų buried · 12 hydrogen bonds · protein-protein
  • A–B · 1399 Ų buried · 12 hydrogen bonds · protein-protein
  • C–D · 1395 Ų buried · 12 hydrogen bonds · protein-protein
  • A–D · 555 Ų buried · 5 hydrogen bonds · protein-protein

Compared structures

  • 3MCV · Structure of PTR1 from Trypanosoma brucei in ternary complex with… · the same entry in another collection · chain A against A, TM-score 1.00

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