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Crystal structure of RNase III from Aquifex Aeolicus complexed with double-stranded RNA at 2.5-angstrom resolution

X-ray diffraction
2.5Å resolution
PDB entry 1yyk coloured by chain, front view.
PDB entry 1yyk coloured by chain, side view.
PDB entry 1yyk coloured by chain, top view.
Source organism: Aquifex aeolicus
Assembly composition:
hetero hexamer (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: Ribonuclease 3 and RNA
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Multimeric state: hetero hexamer
Accessible surface area: 30898.02 Å2
Buried surface area: 7753.55 Å2
Dissociation area: 1,280.57 Å2
Dissociation energy (ΔGdiss): -4.84 kcal/mol
Dissociation entropy (TΔSdiss): 21.76 kcal/mol
Symmetry number: 1
PDBe Complex ID: PDB-CPX-130431

Macromolecules

Ribonuclease 3
Chains: A, B
Length: 221 amino acids
Theoretical weight: 26.15 KDa
Source organism: Aquifex aeolicus
Expression system: Escherichia coli
UniProt:
  • Canonical: O67082 (Residues: 1-221; Coverage: 100%)
Gene names: aq_946, rnc
Pfam:
InterPro:
CATH:
SCOP:
Ribonuclease 3 in PDB entry 1yyk, assembly 1, front view.
Ribonuclease 3 in PDB entry 1yyk, assembly 1, side view.
Ribonuclease 3 in PDB entry 1yyk, assembly 1, top view.
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RNA chains C, D, E, F
Name: 5'-R(*CP*GP*CP*GP*AP*AP*UP*UP*CP*GP*CP*G)-3'
Representative chains: C, D, E, F
Source organism: Aquifex aeolicus [63363]
Expression system: Not provided
Length: 12 nucleotides
Theoretical weight: 3.83 KDa
5'-R(*CP*GP*CP*GP*AP*AP*UP*UP*CP*GP*CP*G)-3' in PDB entry 1yyk, assembly 1, front view.
5'-R(*CP*GP*CP*GP*AP*AP*UP*UP*CP*GP*CP*G)-3' in PDB entry 1yyk, assembly 1, side view.
5'-R(*CP*GP*CP*GP*AP*AP*UP*UP*CP*GP*CP*G)-3' in PDB entry 1yyk, assembly 1, top view.
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