PDBe 4pmc

X-ray diffraction
1.65Å resolution

Crystal structure of Staphylcoccal nuclease variant Delta+PHS I72K V74K at cryogenic temperature

Released:
Source organism: Staphylococcus aureus
Entry authors: Sorenson JL, Schlessman JL, Garcia-Moreno EB

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)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Nuclease A Chain: A
Molecule details ›
Chain: A
Length: 143 amino acids
Theoretical weight: 16.19 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: P212121
Unit cell:
a: 31.88Å b: 59.889Å c: 73.765Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.183 0.182 0.21
Expression system: Escherichia coli BL21(DE3)