› 3b81

X-ray diffraction
2.1Å resolution

Crystal structure of predicted DNA-binding transcriptional regulator of TetR/AcrR family (NP_350189.1) from Clostridium acetobutylicum at 2.10 A resolution

Released:
DOI: 10.2210/pdb3b81/pdb
PDB entry 3b81 coloured by chain, front view.
PDB entry 3b81 coloured by chain, side view.
PDB entry 3b81 coloured by chain, top view.
Source organism: Clostridium acetobutylicum ATCC 824
Entry author: Joint Center for Structural Genomics (JCSG)

Function and Biology Details

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

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-188887 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
HTH tetR-type domain-containing protein Chain: A
Molecule details ›
Chain: A
Length: 203 amino acids
Theoretical weight: 23.46 KDa
Source organism: Clostridium acetobutylicum ATCC 824
Expression system: Escherichia coli
UniProt:
  • Canonical: Q97D74 (Residues: 1-202; Coverage: 100%)
Gene name: CA_C3606
Sequence domains:
Structure domains: Tetracycline Repressor, domain 2

Ligands and Environments

2 bound ligands:
Ligand NA 1 x NA
Ligand EDO 3 x EDO
1 modified residue:
Ligand MSE 3 x MSE

Experiments and Validation Details

Entry percentile scores
X-ray source: ALS BEAMLINE 8.2.2
Spacegroup: P42212
Unit cell:
a: 89.967Å b: 89.967Å c: 70.274Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.204 0.203 0.234
Expression system: Escherichia coli

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