3a1g

X-ray diffraction
1.7Å resolution

High-Resolution Crystal Structure of RNA polymerase PB1-PB2 subunits from Influenza A Virus

Released:

Function and Biology Details

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

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
PDBe Complex ID:
PDB-CPX-137007 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
RNA-directed RNA polymerase catalytic subunit Chains: A, C
Molecule details ›
Chains: A, C
Length: 80 amino acids
Theoretical weight: 9.68 KDa
Source organism: Influenza A virus (A/Puerto Rico/8/1934(H1N1))
Expression system: Escherichia coli
UniProt:
  • Canonical: P03431 (Residues: 678-757; Coverage: 11%)
Gene name: PB1
Structure domains: Helix Hairpins
Polymerase basic protein 2 Chains: B, D
Molecule details ›
Chains: B, D
Length: 40 amino acids
Theoretical weight: 4.73 KDa
Source organism: Influenza A virus (A/Puerto Rico/8/1934(H1N1))
Expression system: Escherichia coli
UniProt:
  • Canonical: P03428 (Residues: 1-37; Coverage: 5%)
Gene name: PB2
Sequence domains: Influenza RNA polymerase PB2 N-terminal region

Ligands and Environments

No bound ligands
1 modified residue:

Experiments and Validation Details

Entry percentile scores
X-ray source: PHOTON FACTORY BEAMLINE BL-17A
Spacegroup: C2
Unit cell:
a: 60.701Å b: 69.987Å c: 61.348Å
α: 90° β: 97.94° γ: 90°
R-values:
R R work R free
0.24 0.238 0.29
Expression system: Escherichia coli