5c3x

X-ray diffraction
1.95Å resolution

Crystal structure of Staphylococcal nuclease variant Delta+PHS I72D/N100E at cryogenic temperature

Released:
Source organism: Staphylococcus aureus
Entry authors: Skerritt LA, Bell-Upp PC, Schlessman JL, Garcia-Moreno E B

Function and Biology Details

Reaction catalysed:
Endonucleolytic cleavage to nucleoside 3'-phosphates and 3'-phosphooligonucleotide end-products
Biochemical function:
Biological process:
  • not assigned
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
monomeric (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-523735 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Nuclease A Chain: A
Molecule details ›
Chain: A
Length: 143 amino acids
Theoretical weight: 16.16 KDa
Source organism: Staphylococcus aureus
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: P00644 (Residues: 83-231; Coverage: 70%)
Gene name: nuc
Sequence domains: Staphylococcal nuclease homologue
Structure domains: OB fold (Dihydrolipoamide Acetyltransferase, E2P)

Ligands and Environments

2 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: OTHER
Spacegroup: P21
Unit cell:
a: 31.126Å b: 60.173Å c: 38.047Å
α: 90° β: 95.03° γ: 90°
R-values:
R R work R free
0.168 0.166 0.208
Expression system: Escherichia coli BL21(DE3)