› 1qhq

X-ray diffraction
1.55Å resolution

AURACYANIN, A BLUE COPPER PROTEIN FROM THE GREEN THERMOPHILIC PHOTOSYNTHETIC BACTERIUM CHLOROFLEXUS AURANTIACUS

Released:
DOI: 10.2210/pdb1qhq/pdb
PDB entry 1qhq coloured by chain, front view.
PDB entry 1qhq coloured by chain, side view.
PDB entry 1qhq coloured by chain, top view.
Source organism: Chloroflexus aurantiacus
Primary publication:
Crystal structure of auracyanin, a "blue" copper protein from the green thermophilic photosynthetic bacterium Chloroflexus aurantiacus.
Bond CS, Blankenship RE, Freeman HC, Guss JM, Maher MJ, Selvaraj FM, Wilce MC, Willingham KM
J Mol Biol 306 47-67 (2001)
PMID: 11178893

Function and Biology Details

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

Structure analysis Details

Assemblies composition:
monomeric (preferred)
homo tetramer
homo dimer
Assembly name:
PDBe Complex ID:
PDB-CPX-150946 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Auracyanin-B-2 Chain: A
Molecule details ›
Chain: A
Length: 140 amino acids
Theoretical weight: 14.41 KDa
Source organism: Chloroflexus aurantiacus
UniProt:
  • Canonical: P27197 (Residues: 96-235; Coverage: 78%)
Gene name: Caur_1950
Sequence domains: Copper binding proteins, plastocyanin/azurin family
Structure domains: Cupredoxins - blue copper proteins

Ligands and Environments

3 bound ligands:
Ligand CU 1 x CU
Ligand CL 1 x CL
Ligand SO4 2 x SO4
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 14-BM-D
Spacegroup: P6422
Unit cell:
a: 115.739Å b: 115.739Å c: 54.549Å
α: 90° β: 90° γ: 120°
R-values:
R R work R free
0.198 0.198 0.233

Quick links

Citations

2 review citations

Alternative Complex III from phototrophic bacteria and its electron acceptor auracyanin.
Majumder et al. (2013)
1 more

4 mentions without citation

Metalloproteins containing cytochrome, iron-sulfur, or copper redox centers.
Liu et al. (2014)
3 more