PDBe 1jfz

X-ray diffraction
2.1Å resolution

Crystal Structure of MN(II)-Complex of RNAse III Endonuclease Domain from Aquifex Aeolicus at 2.10 Angstrom Resolution


Function and Biology Details

Reaction catalysed:
Endonucleolytic cleavage to 5'-phosphomonoester. 
Biochemical function:
Biological process:
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Entry contents:
1 distinct polypeptide molecule
Ribonuclease 3 Chains: A, B, C, D
Molecule details ›
Chains: A, B, C, D
Length: 154 amino acids
Theoretical weight: 18.16 KDa
Source organism: Aquifex aeolicus
Expression system: Escherichia coli BL21(DE3)
  • Canonical: O67082 (Residues: 1-147; Coverage: 67%)
Gene names: aq_946, rnc
Sequence domains: Ribonuclease III domain
Structure domains: Ribonuclease iii, N-terminal Endonuclease Domain; Chain A

Ligands and Environments

1 bound ligand:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: NSLS BEAMLINE X9B
Spacegroup: P21
Unit cell:
a: 49.741Å b: 140.549Å c: 49.759Å
α: 90° β: 117.42° γ: 90°
R R work R free
0.208 0.195 0.286
Expression system: Escherichia coli BL21(DE3)