3e1f

X-ray diffraction
3Å resolution

E.Coli (lacZ) beta-galactosidase (H418E) in complex with galactose

Released:

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: 1, 2, 3, 4
Molecule details ›
Chains: 1, 2, 3, 4
Length: 1023 amino acids
Theoretical weight: 116.5 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: P21
Unit cell:
a: 128.37Å b: 152.87Å c: 132.12Å
α: 90° β: 102.68° γ: 90°
R-values:
R R work R free
0.218 0.218 0.249
Expression system: Escherichia coli