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Cryo-EM structure of Pseudomonas aeruginosa RsmZ RNA in complex with three RsmA protein dimers

Electron Microscopy
3.8Å resolution
PDB entry 7yr7 coloured by chain, front view.
PDB entry 7yr7 coloured by chain, side view.
PDB entry 7yr7 coloured by chain, top view.
Source organism: Pseudomonas aeruginosa
Assembly composition:
hetero heptamer (preferred)
Entry contents: 1 distinct polypeptide molecule
1 distinct RNA molecule

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Assemblies

Assembly 1 (preferred)
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Assembly Name: Translational regulator CsrA and RNA
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Multimeric state: hetero heptamer
Accessible surface area: 37482.97 Å2
Buried surface area: 20761.22 Å2
Dissociation area: 1,780.69 Å2
Dissociation energy (ΔGdiss): 5.72 kcal/mol
Dissociation entropy (TΔSdiss): 12.16 kcal/mol
Symmetry number: 1
PDBe Complex ID: PDB-CPX-232719

Macromolecules

Translational regulator CsrA
Chains: B, C, D, E, F, G
Length: 55 amino acids
Theoretical weight: 6.2 KDa
Source organism: Pseudomonas aeruginosa
Expression system: Escherichia coli
UniProt:
  • Canonical: O69078 (Residues: 1-55; Coverage: 90%)
Gene names: PA0905, csrA, rsmA
Pfam: Global regulator protein family
Translational regulator CsrA in PDB entry 7yr7, assembly 1, front view.
Translational regulator CsrA in PDB entry 7yr7, assembly 1, side view.
Translational regulator CsrA in PDB entry 7yr7, assembly 1, top view.
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RNA chain A
Name: RsmZ RNA (118-MER)
Representative chains: A
Source organism: Pseudomonas aeruginosa [287]
Expression system: Escherichia coli [562]
Length: 118 nucleotides
Theoretical weight: 38.4 KDa
Rfam: PrrB/RsmZ RNA family
RsmZ RNA (118-MER) in PDB entry 7yr7, assembly 1, front view.
RsmZ RNA (118-MER) in PDB entry 7yr7, assembly 1, side view.
RsmZ RNA (118-MER) in PDB entry 7yr7, assembly 1, top view.
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