6pmi

Electron Microscopy
3.86Å resolution

Sigm28-transcription initiation complex with specific promoter at the state 1

Released:

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero nonamer (preferred)
PDBe Complex ID:
PDB-CPX-199498 (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: A, B
Molecule details ›
Chains: A, B
Length: 329 amino acids
Theoretical weight: 36.56 KDa
Source organism: Escherichia coli O157:H7
Expression system: Escherichia coli
UniProt:
  • Canonical: P0A7Z4 (Residues: 1-329; Coverage: 100%)
Gene names: JW3257, b3295, pez, phs, rpoA, sez
Sequence domains:
DNA-directed RNA polymerase subunit beta Chain: C
Molecule details ›
Chain: C
Length: 1342 amino acids
Theoretical weight: 150.82 KDa
Source organism: Escherichia coli S88
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: D
DNA-directed RNA polymerase subunit omega Chain: E
RNA polymerase sigma factor FliA Chain: F
SYNTHETIC NONTEMPLATE STRAND DNA (54-MER) Chain: 1
SYNTHETIC TEMPLATE STRAND DNA (54-MER) Chain: 2
Nascent RNA Chain: 3

Ligands and Environments

2 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
Resolution: 3.86Å
Relevant EMDB volumes: EMD-20394
Expression system: Escherichia coli