1cjb

X-ray diffraction
2Å resolution

MALARIAL PURINE PHOSPHORIBOSYLTRANSFERASE

Released:

Function and Biology Details

Reactions catalysed:
XMP + diphosphate = 5-phospho-alpha-D-ribose 1-diphosphate + xanthine
IMP + diphosphate = hypoxanthine + 5-phospho-alpha-D-ribose 1-diphosphate
Biological process:
Cellular component:

Structure analysis Details

Assembly composition:
homo tetramer (preferred)
PDBe Complex ID:
PDB-CPX-148823 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Hypoxanthine-guanine-xanthine phosphoribosyltransferase Chains: A, B, C, D
Molecule details ›
Chains: A, B, C, D
Length: 231 amino acids
Theoretical weight: 26.39 KDa
Source organism: Plasmodium falciparum
Expression system: Escherichia coli
UniProt:
  • Canonical: P20035 (Residues: 1-231; Coverage: 100%)
Gene name: LACZ
Sequence domains: Phosphoribosyl transferase domain
Structure domains: Rossmann fold

Ligands and Environments

3 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: NSLS BEAMLINE X9B
Spacegroup: C2221
Unit cell:
a: 105.49Å b: 110.39Å c: 173.7Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.196 0.196 0.239
Expression system: Escherichia coli