X-ray diffraction
1.9Å resolution

Crystal Structure and Allosteric Regulation of the Cytoplasmic Escherichia coli L-Asparaginase I


Function and Biology Details

Structure analysis Details

Assembly composition:
homo tetramer (preferred)
Entry contents:
1 distinct polypeptide molecule
L-asparaginase 1 Chains: A, B, C, D
Molecule details ›
Chains: A, B, C, D
Length: 358 amino acids
Theoretical weight: 39.34 KDa
Source organism: Escherichia coli
Expression system: Escherichia coli BL21(DE3)
  • Canonical: P0A962 (Residues: 1-338; Coverage: 100%)
Gene names: JW1756, ansA, b1767
Sequence domains:
Structure domains:

Ligands and Environments

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 22-ID
Spacegroup: P21
Unit cell:
a: 90.315Å b: 89.757Å c: 93.083Å
α: 90° β: 117.03° γ: 90°
R R work R free
0.223 0.223 0.264
Expression system: Escherichia coli BL21(DE3)