PDBe 2pi5

X-ray diffraction
2.9Å resolution

T7 RNA polymerase complexed with a phi10 promoter


Function and Biology Details

Reaction catalysed:
Nucleoside triphosphate + RNA(n) = diphosphate + RNA(n+1)
Biochemical function:
Biological process:
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
hetero trimer (preferred)
Entry contents:
1 distinct polypeptide molecule
2 distinct DNA molecules
Macromolecules (3 distinct):
T7 RNA polymerase Chain: A
Molecule details ›
Chain: A
Length: 878 amino acids
Theoretical weight: 98.41 KDa
Source organism: Enterobacteria phage T7
Expression system: Escherichia coli
  • Canonical: P00573 (Residues: 6-883; Coverage: 99%)
Gene name: 1
Sequence domains:
Structure domains:
Molecule details ›
Chain: P
Length: 14 nucleotides
Theoretical weight: 4.22 KDa
Source organism: Synthetic construct
Expression system: Not provided
Molecule details ›
Chain: T
Length: 22 nucleotides
Theoretical weight: 6.73 KDa
Source organism: Synthetic construct
Expression system: Not provided

Ligands and Environments

No bound ligands

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 14-ID-B
Spacegroup: P21212
Unit cell:
a: 224.45Å b: 73.791Å c: 80.315Å
α: 90° β: 90° γ: 90°
R R work R free
0.249 0.249 0.268
Expression systems:
  • Escherichia coli
  • Not provided