PDBe 1ql0

X-ray diffraction
1.1Å resolution

Sm Endonuclease from Seratia marcenscens at atomic resolution

Released:

Function and Biology Details

Reaction catalysed:
Endonucleolytic cleavage to 5'-phosphomononucleotide and 5'-phosphooligonucleotide end-products. 
Biochemical function:
Cellular component:

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Nuclease Chains: A, B
Molecule details ›
Chains: A, B
Length: 241 amino acids
Theoretical weight: 26.3 KDa
Source organism: Serratia marcescens
Expression system: Serratia marcescens
UniProt:
  • Canonical: P13717 (Residues: 26-266; Coverage: 98%)
Gene names: nuc, nucA
Structure domains: Extracellular Endonuclease, subunit A

Ligands and Environments

1 bound ligand:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: EMBL/DESY, HAMBURG BEAMLINE BW7B
Spacegroup: P21212
Unit cell:
a: 106.39Å b: 73.67Å c: 68.12Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.128 not available 0.147
Expression system: Serratia marcescens