X-ray diffraction
3.2Å resolution

Unrefined crystal structure of a LexA-DNA complex

Source organism: Escherichia coli K-12
Entry authors: Zhang APP, Pigli YZ, Rice PA

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero tetramer (preferred)
Entry contents:
1 distinct polypeptide molecule
1 distinct DNA molecule
Macromolecules (2 distinct):
LexA repressor Chains: E, F
Molecule details ›
Chains: E, F
Length: 202 amino acids
Theoretical weight: 22.33 KDa
Source organism: Escherichia coli K-12
Expression system: Escherichia coli
  • Canonical: P0A7C2 (Residues: 1-202; Coverage: 100%)
Gene names: JW4003, b4043, exrA, lexA, spr, tsl, umuA
Sequence domains:
DNA (28-MER) Chains: A, B
Molecule details ›
Chains: A, B
Length: 29 nucleotides
Theoretical weight: 8.93 KDa
Source organism: Escherichia coli K-12
Expression system: Not provided

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 19-BM
Spacegroup: P212121
Unit cell:
a: 45.357Å b: 120.393Å c: 149.814Å
α: 90° β: 90° γ: 90°
Expression systems:
  • Escherichia coli
  • Not provided