X-ray diffraction
2.4Å resolution

Crystal structure of a Rex-family repressor R90D mutant from Thermus aquaticus


Function and Biology Details

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Entry contents:
1 distinct polypeptide molecule
Redox-sensing transcriptional repressor Rex Chains: A, B
Molecule details ›
Chains: A, B
Length: 207 amino acids
Theoretical weight: 22.69 KDa
Source organism: Thermus thermophilus HB27
Expression system: Escherichia coli
  • Canonical: Q72I39 (Residues: 1-206; Coverage: 98%)
Gene names: TT_C1293, rex
Sequence domains:
Structure domains:

Ligands and Environments

1 bound ligand:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: NSLS BEAMLINE X12B
Spacegroup: P212121
Unit cell:
a: 56.995Å b: 88.222Å c: 99.576Å
α: 90° β: 90° γ: 90°
R R work R free
0.218 0.218 0.256
Expression system: Escherichia coli