3hqf

X-ray diffraction
2.51Å resolution

Crystal structure of restriction endonuclease EcoRII N-terminal effector-binding domain in complex with cognate DNA

Released:

Function and Biology Details

Reaction catalysed:
Endonucleolytic cleavage of DNA to give specific double-stranded fragments with terminal 5'-phosphates
Biochemical function:
  • not assigned
Biological process:
  • not assigned
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
hetero trimer (preferred)
PDBe Complex ID:
PDB-CPX-116374 (preferred)
Entry contents:
1 distinct polypeptide molecule
2 distinct DNA molecules
Macromolecules (3 distinct):
Restriction endonuclease type IIe Chain: A
Molecule details ›
Chain: A
Length: 181 amino acids
Theoretical weight: 19.91 KDa
Source organism: Escherichia coli
Expression system: Escherichia coli
UniProt:
  • Canonical: O69414 (Residues: 2-170; Coverage: 42%)
Gene names: EcoRII, ecoRII, pHKU1_13
Sequence domains: Restriction endonuclease EcoRII, N-terminal
Structure domains: DNA-binding pseudobarrel domain
5'-D(*GP*CP*CP*CP*TP*GP*GP*CP*G)-3' Chain: B
Molecule details ›
Chain: B
Length: 9 nucleotides
Theoretical weight: 2.73 KDa
Source organism: Escherichia coli
Expression system: Not provided
5'-D(*CP*GP*CP*CP*AP*GP*GP*GP*C)-3' Chain: C
Molecule details ›
Chain: C
Length: 9 nucleotides
Theoretical weight: 2.74 KDa
Source organism: Escherichia coli
Expression system: Not provided

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: EMBL/DESY, HAMBURG BEAMLINE X13
Spacegroup: P43212
Unit cell:
a: 43.156Å b: 43.156Å c: 253.648Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.191 0.187 0.229
Expression systems:
  • Escherichia coli
  • Not provided