2bex

X-ray diffraction
1.99Å resolution

Crystal structure of Placental Ribonuclease Inhibitor in complex with Human Eosinophil Derived Neurotoxin at 2A resolution

Released:

Function and Biology Details

Reaction catalysed:
(1a) an (RNA) containing cytidine = an (RNA)-3'-cytidine-2',3'-cyclophosphate + a 5'-hydroxy-ribonucleotide-3'-(RNA)
Biochemical function:
Cellular component:

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
PDBe Complex ID:
PDB-CPX-145195 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Ribonuclease inhibitor Chains: A, B
Molecule details ›
Chains: A, B
Length: 460 amino acids
Theoretical weight: 49.89 KDa
Source organism: Homo sapiens
UniProt:
  • Canonical: P13489 (Residues: 2-461; Coverage: 100%)
Gene names: PRI, RNH, RNH1
Sequence domains:
Structure domains: Ribonuclease Inhibitor
Non-secretory ribonuclease Chains: C, D
Molecule details ›
Chains: C, D
Length: 135 amino acids
Theoretical weight: 15.61 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: P10153 (Residues: 27-161; Coverage: 100%)
Gene names: EDN, RNASE2, RNS2
Sequence domains: Pancreatic ribonuclease
Structure domains: Ribonuclease A-like domain

Ligands and Environments

2 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SRS BEAMLINE PX14.2
Spacegroup: P3121
Unit cell:
a: 91.98Å b: 91.98Å c: 257.65Å
α: 90° β: 90° γ: 120°
R-values:
R R work R free
0.206 0.206 0.243
Expression system: Escherichia coli