5izc

X-ray diffraction
1.92Å resolution

Function and Biology Details

Reaction catalysed:
5,6,7,8-tetrahydrobiopterin + 2 NADP(+) = biopterin + 2 NADPH
Biochemical function:
Biological process:
  • not assigned
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
hetero tetramer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-131225 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Pteridine reductase Chains: A, B, D
Molecule details ›
Chains: A, B, D
Length: 268 amino acids
Theoretical weight: 28.57 KDa
Source organism: Trypanosoma brucei brucei
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: O76290 (Residues: 1-268; Coverage: 100%)
Gene name: PTR1
Sequence domains: Enoyl-(Acyl carrier protein) reductase
Structure domains: NAD(P)-binding Rossmann-like Domain
Pteridine reductase Chain: C
Molecule details ›
Chain: C
Length: 268 amino acids
Theoretical weight: 28.62 KDa
Source organism: Trypanosoma brucei brucei
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: O76290 (Residues: 1-268; Coverage: 100%)
Gene name: PTR1
Sequence domains: Enoyl-(Acyl carrier protein) reductase
Structure domains: NAD(P)-binding Rossmann-like Domain

Ligands and Environments


Cofactor: Ligand NAP 4 x NAP
3 bound ligands:
2 modified residues:

Experiments and Validation Details

Entry percentile scores
X-ray source: ELETTRA BEAMLINE 5.2R
Spacegroup: P21
Unit cell:
a: 74.63Å b: 89.443Å c: 82.645Å
α: 90° β: 115.87° γ: 90°
R-values:
R R work R free
0.163 0.161 0.206
Expression system: Escherichia coli BL21(DE3)