X-ray diffraction
1.6Å resolution

Crystal structure E. coli Purk in complex with Mg, ADP, and Pi


Function and Biology Details

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Entry contents:
1 distinct polypeptide molecule
N5-carboxyaminoimidazole ribonucleotide synthase Chains: A, B
Molecule details ›
Chains: A, B
Length: 355 amino acids
Theoretical weight: 39.53 KDa
Source organism: Escherichia coli K-12
Expression system: Escherichia coli
  • Canonical: P09029 (Residues: 1-355; Coverage: 100%)
Gene names: JW0511, b0522, purK
Sequence domains:
Structure domains:

Ligands and Environments

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 19-ID
Spacegroup: C2
Unit cell:
a: 128.8Å b: 70.5Å c: 88.7Å
α: 90° β: 124.3° γ: 90°
R R work R free
0.16 0.158 0.215
Expression system: Escherichia coli