› 1r4v

X-ray diffraction
1.9Å resolution

1.9A crystal structure of protein AQ328 from Aquifex aeolicus

Released:
DOI: 10.2210/pdb1r4v/pdb
PDB entry 1r4v coloured by chain, front view.
PDB entry 1r4v coloured by chain, side view.
PDB entry 1r4v coloured by chain, top view.
Source organism: Aquifex aeolicus VF5
Primary publication:
The crystal structure of Aq_328 from the hyperthermophilic bacteria Aquifex aeolicus shows an ancestral histone fold.
Qiu Y, Tereshko V, Kim Y, Zhang R, Collart F, Yousef M, Kossiakoff A, Joachimiak A
Proteins 62 8-16 (2006)
PMID: 16287087

Function and Biology Details

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

Structure analysis Details

Assembly composition:
monomeric (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-130363 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Hypothetical protein AQ_328 Chain: A
Molecule details ›
Chain: A
Length: 171 amino acids
Theoretical weight: 20.15 KDa
Source organism: Aquifex aeolicus VF5
Expression system: Escherichia coli BL21
UniProt:
  • Canonical: O66665 (Residues: 1-171; Coverage: 100%)
Gene name: aq_328
Sequence domains: Domain of unknown function (DUF1931)
Structure domains: Histone, subunit A

Ligands and Environments

2 bound ligands:
Ligand ZN 3 x ZN
Ligand CAC 1 x CAC
1 modified residue:
Ligand MSE 7 x MSE

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 19-ID
Spacegroup: P6522
Unit cell:
a: 56.036Å b: 56.036Å c: 244.768Å
α: 90° β: 90° γ: 120°
R-values:
R R work R free
0.182 0.181 0.213
Expression system: Escherichia coli BL21

Quick links

Citations

1 review citation

The major architects of chromatin: architectural proteins in bacteria, archaea and eukaryotes.
Luijsterburg et al. (2008)
6 other articles

3 mentions without citation

The Histone Database: an integrated resource for histones and histone fold-containing proteins.
Mariño-Ramírez et al. (2011)
2 more