Structure analysis

Cryo-EM structure of Streptomyces coelicolor transcription initial complex with one Zur dimer

Electron Microscopy
4.14Å resolution
Assembly composition:
hetero undecamer (preferred)
Entry contents: 6 distinct polypeptide molecules
2 distinct DNA molecules
1 distinct RNA molecule

Assemblies

Assembly 1 (preferred)
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Multimeric state: hetero undecamer
Accessible surface area: 167025.02 Å2
Buried surface area: 65391.31 Å2
Dissociation area: 1,521.15 Å2
Dissociation energy (ΔGdiss): 8.71 kcal/mol
Dissociation entropy (TΔSdiss): 14.13 kcal/mol
Symmetry number: 1
PDBe Complex ID: PDB-CPX-105604

Macromolecules

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Chain: E
Length: 90 amino acids
Theoretical weight: 9.72 KDa
Source organism: Streptomyces coelicolor A3(2)
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: Q9KXS1 (Residues: 1-90; Coverage: 100%)
Gene names: SC9C5.02c, SCO1478, rpoZ
Pfam: RNA polymerase Rpb6
InterPro:

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Chains: M, N
Length: 159 amino acids
Theoretical weight: 16.9 KDa
Source organism: Streptomyces coelicolor A3(2)
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: Q9L2H5 (Residues: 1-139; Coverage: 100%)
Gene names: SCC121.11, SCO2508
Pfam: Ferric uptake regulator family
InterPro:

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Name: DNA (84-MER)
Representative chains: O
Length: 84 nucleotides
Theoretical weight: 25.81 KDa

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Name: DNA (84-MER)
Representative chains: P
Length: 84 nucleotides
Theoretical weight: 26.01 KDa

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Name: RNA
Representative chains: Q
Length: 5 nucleotides
Theoretical weight: 1.63 KDa

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