6alg

Electron Microscopy
3.7Å resolution

CryoEM structure of HK022 Nun - E.coli RNA polymerase elongation complex

Released:

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero nonamer (preferred)
Entry contents:
5 distinct polypeptide molecules
2 distinct DNA molecules
1 distinct RNA molecule
Macromolecules (8 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:
Structure 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: 91 amino acids
Theoretical weight: 10.25 KDa
Source organism: Escherichia coli K-12
Expression system: Escherichia coli
UniProt:
  • Canonical: P0A800 (Residues: 1-91; Coverage: 100%)
Gene names: JW3624, b3649, rpoZ
Sequence domains: RNA polymerase Rpb6
Structure domains: Eukaryotic RPB6 RNA polymerase subunit
Transcription termination factor nun Chain: N
Molecule details ›
Chain: N
Length: 109 amino acids
Theoretical weight: 12.76 KDa
Source organism: Escherichia virus HK022
Expression system: Escherichia coli
UniProt:
  • Canonical: P18683 (Residues: 4-112; Coverage: 97%)
Gene name: nun
DNA (29-MER) Chain: A
Molecule details ›
Chain: A
Length: 29 nucleotides
Theoretical weight: 8.84 KDa
DNA (29-MER) Chain: B
Molecule details ›
Chain: B
Length: 29 nucleotides
Theoretical weight: 8.81 KDa
RNA (5'-R(P*CP*GP*GP*AP*GP*AP*GP*GP*UP*A)-3') Chain: R
Molecule details ›
Chain: R
Length: 20 nucleotides
Theoretical weight: 6.51 KDa

Ligands and Environments

2 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
Resolution: 3.7Å
Relevant EMDB volumes: EMD-8584
Expression system: Escherichia coli