2a6e

X-ray diffraction
2.8Å resolution

Crystal structure of the T. Thermophilus RNA polymerase holoenzyme

Released:

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero hexamer (preferred)
Entry contents:
5 distinct polypeptide molecules
Macromolecules (5 distinct):
DNA-directed RNA polymerase subunit alpha Chains: A, B, K, L
Molecule details ›
Chains: A, B, K, L
Length: 315 amino acids
Theoretical weight: 35.06 KDa
Source organism: Thermus thermophilus
UniProt:
  • Canonical: Q5SHR6 (Residues: 1-315; Coverage: 100%)
Gene names: TTHA1664, rpoA
Sequence domains:
Structure domains:
DNA-directed RNA polymerase subunit omega Chains: E, O
Molecule details ›
Chains: E, O
Length: 99 amino acids
Theoretical weight: 11.52 KDa
Source organism: Thermus thermophilus
UniProt:
  • Canonical: Q8RQE7 (Residues: 1-99; Coverage: 100%)
Gene names: TTHA1561, rpoZ
Sequence domains: RNA polymerase Rpb6
Structure domains: Eukaryotic RPB6 RNA polymerase subunit
RNA polymerase sigma factor SigA Chains: F, P
Molecule details ›
Chains: F, P
Length: 423 amino acids
Theoretical weight: 48.57 KDa
Source organism: Thermus thermophilus
UniProt:
  • Canonical: Q5SKW1 (Residues: 1-423; Coverage: 100%)
Gene names: TTHA0532, sigA
Sequence domains:
Structure domains:

Ligands and Environments

2 bound ligands:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: PHOTON FACTORY BEAMLINE BL-5A
Spacegroup: P32
Unit cell:
a: 239.5Å b: 239.5Å c: 253.1Å
α: 90° β: 90° γ: 120°
R-values:
R R work R free
0.236 0.231 0.268