X-ray diffraction
2.1Å resolution

X-ray structure of the complex of Bovine seminal ribonuclease swapping dimer with d(CpA)


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:
Biological process:
Cellular component:

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Entry contents:
1 distinct polypeptide molecule
Seminal ribonuclease Chains: A, B
Molecule details ›
Chains: A, B
Length: 124 amino acids
Theoretical weight: 13.63 KDa
Source organism: Bos taurus
  • Canonical: P00669 (Residues: 27-150; Coverage: 100%)
Gene name: SRN
Sequence domains: Pancreatic ribonuclease
Structure domains: Ribonuclease A-like domain

Ligands and Environments

1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ENRAF-NONIUS
Spacegroup: P212121
Unit cell:
a: 49.54Å b: 60.02Å c: 83.69Å
α: 90° β: 90° γ: 90°
R R work R free
0.2 0.19 0.242