Structure analysis

Cryo-EM structure of EcmrR-RNAP-promoter open complex (EcmrR-RPo)

Electron Microscopy
2.5Å resolution
Source organism: Escherichia coli O157:H7
Assembly composition:
hetero decamer (preferred)
Entry contents: 6 distinct polypeptide molecules
2 distinct DNA molecules

Assemblies

Assembly 1 (preferred)
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Multimeric state: hetero decamer
Accessible surface area: 185070.92 Å2
Buried surface area: 63288.6 Å2
Dissociation area: 1,731.29 Å2
Dissociation energy (ΔGdiss): 22.6 kcal/mol
Dissociation entropy (TΔSdiss): 15.99 kcal/mol
Symmetry number: 1
PDBe Complex ID: PDB-CPX-120960

Macromolecules

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Chain: E
Length: 91 amino acids
Theoretical weight: 10.25 KDa
Source organism: Escherichia coli O157:H7
Expression system: Escherichia coli O157:H7
UniProt:
  • Canonical: P0A800 (Residues: 1-91; Coverage: 100%)
Gene names: JW3624, b3649, rpoZ
Pfam: RNA polymerase Rpb6
InterPro:

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Name: synthetic non-template strand DNA (54-MER)
Representative chains: N
Length: 54 nucleotides
Theoretical weight: 16.72 KDa

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Name: synthetic template strand DNA (54-MER)
Representative chains: T
Length: 54 nucleotides
Theoretical weight: 16.63 KDa

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