Structure analysis

Cryo-EM structure of Escherichia coli RNA polymerase bound to lambda PR promoter DNA (class 1)

Electron Microscopy
3.2Å resolution
Source organism: Escherichia coli
Assembly composition:
hetero nonamer (preferred)
Entry contents: 5 distinct polypeptide molecules
2 distinct DNA molecules

Assemblies

Assembly 1 (preferred)
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Multimeric state: hetero nonamer
Accessible surface area: 179221.33 Å2
Buried surface area: 55330.04 Å2
Dissociation area: 586.53 Å2
Dissociation energy (ΔGdiss): -6.24 kcal/mol
Dissociation entropy (TΔSdiss): 11.51 kcal/mol
Symmetry number: 1
PDBe Complex ID: PDB-CPX-121640

Macromolecules

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Chain: K
Length: 91 amino acids
Theoretical weight: 10.25 KDa
Source organism: Escherichia coli
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: P0A800 (Residues: 1-91; Coverage: 100%)
Gene names: JW3624, b3649, rpoZ
Pfam: RNA polymerase Rpb6
InterPro:

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Name: Nontemplate strand of lambda PR promoter DNA
Representative chains: P
Length: 90 nucleotides
Theoretical weight: 27.88 KDa

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Name: Template strand of lambda PR promoter DNA
Representative chains: Q
Length: 90 nucleotides
Theoretical weight: 27.63 KDa

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