3edc

X-ray diffraction
2.1Å resolution

Crystal Structure of a 1.6-hexanediol Bound Tetrameric Form of Escherichia coli Lac-repressor Refined to 2.1 Resolution

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Model geometry
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Function and Biology Details

Structure analysis Details

Assembly composition:
homo tetramer (preferred)
PDBe Complex ID:
PDB-CPX-136466 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Lactose operon repressor Chains: A, B, C, D
Molecule details ›
Chains: A, B, C, D
Length: 360 amino acids
Theoretical weight: 38.63 KDa
Source organism: Escherichia coli K-12
Expression system: Escherichia coli
UniProt:
  • Canonical: P03023 (Residues: 1-360; Coverage: 100%)
Gene names: JW0336, b0345, lacI
Sequence domains:
Structure domains: Rossmann fold

Ligands and Environments

1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: EMBL/DESY, HAMBURG BEAMLINE X11
Spacegroup: C2
Unit cell:
a: 164.15Å b: 72.434Å c: 130.566Å
α: 90° β: 113.96° γ: 90°
R-values:
R R work R free
0.159 0.156 0.201
Expression system: Escherichia coli