1cr4

X-ray diffraction
2.5Å resolution

CRYSTAL STRUCTURE OF THE HELICASE DOMAIN OF THE GENE 4 PROTEIN OF BACTERIOPHAGE T7: COMPLEX WITH DTDP

Released:

Function and Biology Details

Reaction catalysed:
ATP + H(2)O = ADP + phosphate
Biochemical function:
Biological process:
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
homo hexamer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-137202 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
DNA helicase/primase Chain: A
Molecule details ›
Chain: A
Length: 296 amino acids
Theoretical weight: 32.83 KDa
Source organism: Escherichia phage T7
Expression system: Escherichia coli
UniProt:
  • Canonical: P03692 (Residues: 271-566; Coverage: 52%)
Gene name: 4
Sequence domains: DnaB-like helicase C terminal domain
Structure domains: P-loop containing nucleotide triphosphate hydrolases

Ligands and Environments

2 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: NSLS BEAMLINE X25
Spacegroup: P61
Unit cell:
a: 80.784Å b: 80.784Å c: 85.852Å
α: 90° β: 90° γ: 120°
R-values:
R R work R free
0.251 0.242 0.287
Expression system: Escherichia coli