› 4iun

X-ray diffraction
1.6Å resolution

Crystal structure of Staphylococcal nuclease variant Delta+PHS R126E at cryogenic temperature

Released:
DOI: 10.2210/pdb4iun/pdb
PDB entry 4iun coloured by chain, front view.
PDB entry 4iun coloured by chain, side view.
PDB entry 4iun coloured by chain, top view.
Source organism: Staphylococcus aureus
Entry authors: 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
Sequence domains:

Structure analysis Details

Assembly composition:
monomeric (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-132790 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Nuclease A Chain: A
Molecule details ›
Chain: A
Length: 143 amino acids
Theoretical weight: 16.12 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

4 bound ligands:
Ligand CA 1 x CA
Ligand THP 1 x THP
Ligand PO4 1 x PO4
Ligand MPD 1 x MPD
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: OTHER
Spacegroup: P21
Unit cell:
a: 30.858Å b: 59.465Å c: 34.462Å
α: 90° β: 97.94° γ: 90°
R-values:
R R work R free
0.152 0.15 0.179
Expression system: Escherichia coli BL21(DE3)

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