PDBe 1a2t

X-ray diffraction
1.96Å resolution

STAPHYLOCOCCAL NUCLEASE, B-MERCAPTOETHANOL DISULFIDE TO V23C VARIANT

Released:
Source organism: Staphylococcus aureus

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: 149 amino acids
Theoretical weight: 16.92 KDa
Source organism: Staphylococcus aureus
Expression system: Escherichia coli
UniProt:
  • Canonical: P00644 (Residues: 83-231; Coverage: 73%)
Gene name: nuc
Sequence domains: Staphylococcal nuclease homologue
Structure domains: OB fold (Dihydrolipoamide Acetyltransferase, E2P)

Ligands and Environments

2 bound ligands:

1 modified residue:

Experiments and Validation Details

Entry percentile scores
X-ray source: RIGAKU RUH2R
Spacegroup: P41
Unit cell:
a: 48.2Å b: 48.2Å c: 63Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.169 0.169 not available
Expression system: Escherichia coli