3iaq

X-ray diffraction
2.7Å resolution

Function and Biology Details

Structure analysis Details

Assembly composition:
homo tetramer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-133036 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Beta-galactosidase Chains: A, B, C, D
Molecule details ›
Chains: A, B, C, D
Length: 1023 amino acids
Theoretical weight: 116.48 KDa
Source organism: Escherichia coli K-12
Expression system: Escherichia coli
UniProt:
  • Canonical: P00722 (Residues: 10-1024; Coverage: 99%)
Gene names: JW0335, b0344, lacZ
Sequence domains:
Structure domains:

Ligands and Environments

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ALS BEAMLINE 8.3.1
Spacegroup: P212121
Unit cell:
a: 149.38Å b: 168.3Å c: 200.73Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.185 0.184 0.253
Expression system: Escherichia coli