X-ray diffraction
2.6Å resolution

E. coli NikR soaked with excess nickel ions


Function and Biology Details

Structure analysis Details

Assembly composition:
homo tetramer (preferred)
Entry contents:
1 distinct polypeptide molecule
Nickel-responsive regulator Chains: A, B
Molecule details ›
Chains: A, B
Length: 133 amino acids
Theoretical weight: 15.12 KDa
Source organism: Escherichia coli
Expression system: Escherichia coli
  • Canonical: P0A6Z6 (Residues: 1-133; Coverage: 100%)
Gene names: JW3446, b3481, nikR, yhhG
Sequence domains:
Structure domains:

Ligands and Environments

2 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ALS BEAMLINE 5.0.2
Spacegroup: P3121
Unit cell:
a: 50.735Å b: 50.735Å c: 183.114Å
α: 90° β: 90° γ: 120°
R R work R free
0.236 0.236 0.286
Expression system: Escherichia coli