Structure analysis

Structure of Mycobacterium smegmatis RNA polymerase Sigma-A holoenzyme

Electron Microscopy
4.22Å resolution
Assembly composition:
hetero hexamer (preferred)
Entry contents: 5 distinct polypeptide molecules

Assemblies

Assembly 1 (preferred)
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Multimeric state: hetero hexamer
Accessible surface area: 123119.72 Å2
Buried surface area: 35423.7 Å2
Dissociation area: 2,197.35 Å2
Dissociation energy (ΔGdiss): 10.74 kcal/mol
Dissociation entropy (TΔSdiss): 14.62 kcal/mol
Symmetry number: 1
PDBe Complex ID: PDB-CPX-106290

Macromolecules

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Chain: E
Length: 107 amino acids
Theoretical weight: 11.51 KDa
Source organism: Mycolicibacterium smegmatis MC2 155
Expression system: Escherichia coli
UniProt:
  • Canonical: A0QWT1 (Residues: 2-107; Coverage: 99%)
Gene names: MSMEG_3053, MSMEI_2977, rpoZ
Pfam: RNA polymerase Rpb6
InterPro:

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