2zal

X-ray diffraction
1.9Å resolution

Crystal structure of E. coli isoaspartyl aminopeptidase/L-asparaginase in complex with L-aspartate

Released:
Source organism: Escherichia coli K-12

Function and Biology Details

Reaction catalysed:
Cleavage of a beta-linked Asp residue from the N-terminus of a polypeptide.
Biochemical function:
Biological process:
  • not assigned
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
hetero tetramer (preferred)
PDBe Complex ID:
PDB-CPX-153446 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Isoaspartyl peptidase subunit alpha Chains: A, C
Molecule details ›
Chains: A, C
Length: 160 amino acids
Theoretical weight: 17.07 KDa
Source organism: Escherichia coli K-12
Expression system: Escherichia coli
UniProt:
  • Canonical: P37595 (Residues: 2-161; Coverage: 50%)
Gene names: JW0812, b0828, iaaA, spt, ybiK
Sequence domains: Asparaginase
Isoaspartyl peptidase subunit beta Chains: B, D
Molecule details ›
Chains: B, D
Length: 137 amino acids
Theoretical weight: 13.81 KDa
Source organism: Escherichia coli K-12
Expression system: Escherichia coli
UniProt:
  • Canonical: P37595 (Residues: 179-315; Coverage: 43%)
Gene names: JW0812, b0828, iaaA, spt, ybiK
Sequence domains: Asparaginase
Structure domains: (Glycosyl)asparaginase

Ligands and Environments

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: MAX II BEAMLINE I711
Spacegroup: P212121
Unit cell:
a: 49.89Å b: 77.28Å c: 147.53Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.158 0.157 0.188
Expression system: Escherichia coli