PDBe 6asx

Electron Microscopy
3.8Å resolution

CryoEM structure of E.coli his pause elongation complex

Released:

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero octamer (preferred)
Entry contents:
4 distinct polypeptide molecules
2 distinct DNA molecules
1 distinct RNA molecule
Macromolecules (7 distinct):
DNA-directed RNA polymerase subunit alpha Chains: G, H
Molecule details ›
Chains: G, H
Length: 239 amino acids
Theoretical weight: 26.46 KDa
Source organism: Escherichia coli K-12
Expression system: Escherichia coli
UniProt:
  • Canonical: P0A7Z4 (Residues: 1-234; Coverage: 71%)
Gene names: JW3257, b3295, pez, phs, rpoA, sez
Sequence domains:
DNA-directed RNA polymerase subunit beta Chain: I
Molecule details ›
Chain: I
Length: 1342 amino acids
Theoretical weight: 150.82 KDa
Source organism: Escherichia coli K-12
Expression system: Escherichia coli
UniProt:
  • Canonical: P0A8V2 (Residues: 1-1342; Coverage: 100%)
Gene names: JW3950, b3987, groN, nitB, rif, ron, rpoB, stl, stv, tabD
Sequence domains:
DNA-directed RNA polymerase subunit beta' Chain: J
Molecule details ›
Chain: J
Length: 1407 amino acids
Theoretical weight: 155.37 KDa
Source organism: Escherichia coli K-12
Expression system: Escherichia coli
UniProt:
  • Canonical: P0A8T7 (Residues: 1-1407; Coverage: 100%)
Gene names: JW3951, b3988, rpoC, tabB
Sequence domains:
DNA-directed RNA polymerase subunit omega Chain: K
Molecule details ›
Chain: K
Length: 84 amino acids
Theoretical weight: 9.49 KDa
Source organism: Escherichia coli K-12
Expression system: Escherichia coli
UniProt:
  • Canonical: P0A800 (Residues: 1-84; Coverage: 92%)
Gene names: JW3624, b3649, rpoZ
Sequence domains: RNA polymerase Rpb6
DNA (32-MER) Chain: A
Molecule details ›
Chain: A
Length: 32 nucleotides
Theoretical weight: 9.88 KDa
DNA (32-MER) Chain: B
Molecule details ›
Chain: B
Length: 32 nucleotides
Theoretical weight: 9.71 KDa
RNA (29-MER) Chain: R
Molecule details ›
Chain: R
Length: 29 nucleotides
Theoretical weight: 9.23 KDa

Ligands and Environments

2 bound ligands:

No modified residues

Experiments and Validation Details

Entry percentile scores
Resolution: 3.8Å
Relevant EMDB volumes: EMD-7002
Expression system: Escherichia coli