› 7txo

X-ray diffraction
2.5Å resolution

Selenomethionine Labeled Structure of RexT

Released:
DOI: 10.2210/pdb7txo/pdb
PDB entry 7txo coloured by chain, front view.
PDB entry 7txo coloured by chain, side view.
PDB entry 7txo coloured by chain, top view.
Source organism: Nostoc sp. PCC 7120 = FACHB-418
Primary publication:
Structural and mechanistic basis for redox sensing by the cyanobacterial transcription regulator RexT.
Li B, Jo M, Liu J, Tian J, Canfield R, Bridwell-Rabb J
Commun Biol 5 275 (2022)
PMID: 35347217

Function and Biology Details

Biochemical function:
Biological process:
Cellular component:
  • not assigned
Sequence domains:

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-187129 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
HTH arsR-type domain-containing protein Chains: A, B
Molecule details ›
Chains: A, B
Length: 114 amino acids
Theoretical weight: 12.89 KDa
Source organism: Nostoc sp. PCC 7120 = FACHB-418
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: Q8YVV6 (Residues: 1-112; Coverage: 100%)
Gene name: alr1867
Sequence domains: Helix-turn-helix domain

Ligands and Environments

1 bound ligand:
Ligand CL 4 x CL
1 modified residue:
Ligand MSE 4 x MSE

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 21-ID-F
Spacegroup: P64
Unit cell:
a: 100.46Å b: 100.46Å c: 36.048Å
α: 90° β: 90° γ: 120°
R-values:
R R work R free
0.232 0.23 0.259
Expression system: Escherichia coli BL21(DE3)

Quick links

Citations

2 review citations

The increasing role of structural proteomics in cyanobacteria.
Sound et al. (2023)
1 more