› 2pg4

X-ray diffraction
2.21Å resolution

Crystal structure of a putative dna binding protein (ape_0880a) from aeropyrum pernix k1 at 2.21 A resolution

Released:
DOI: 10.2210/pdb2pg4/pdb
PDB entry 2pg4 coloured by chain, front view.
PDB entry 2pg4 coloured by chain, side view.
PDB entry 2pg4 coloured by chain, top view.
Source organism: Aeropyrum pernix K1
Entry author: Joint Center for Structural Genomics (JCSG)

Function and Biology Details

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

Structure analysis Details

Assemblies composition:
homo dimer (preferred)
homo tetramer
Assembly name:
PDBe Complex ID:
PDB-CPX-195479 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
ArnR1-like winged helix-turn-helix domain-containing protein Chains: A, B
Molecule details ›
Chains: A, B
Length: 95 amino acids
Theoretical weight: 10.93 KDa
Source organism: Aeropyrum pernix K1
Expression system: Escherichia coli
UniProt:
  • Canonical: Q9YDN4 (Residues: 1-94; Coverage: 100%)
Gene name: APE_0880a
Structure domains: Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain

Ligands and Environments

4 bound ligands:
Ligand CL 3 x CL
Ligand EDO 7 x EDO
Ligand CIT 1 x CIT
Ligand PEG 1 x PEG
1 modified residue:
Ligand MSE 4 x MSE

Experiments and Validation Details

Entry percentile scores
X-ray source: SSRL BEAMLINE BL9-2
Spacegroup: P4212
Unit cell:
a: 109.84Å b: 109.84Å c: 36.76Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.201 0.198 0.258
Expression system: Escherichia coli

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