1d02

X-ray diffraction
1.7Å resolution

CRYSTAL STRUCTURE OF MUNI RESTRICTION ENDONUCLEASE 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
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
hetero tetramer (preferred)
PDBe Complex ID:
PDB-CPX-113568 (preferred)
Entry contents:
1 distinct polypeptide molecule
1 distinct DNA molecule
Macromolecules (2 distinct):
Type II restriction enzyme MunI Chains: A, B
Molecule details ›
Chains: A, B
Length: 202 amino acids
Theoretical weight: 23.38 KDa
Source organism: Mycoplasma
Expression system: Escherichia coli
UniProt:
  • Canonical: P43642 (Residues: 1-202; Coverage: 100%)
Gene name: munIR
Sequence domains: Type II restriction enzyme MunI
Structure domains: Eco RI Endonuclease, subunit A
DNA (5'-D(*GP*CP*CP*AP*AP*TP*TP*GP*GP*C)-3') Chains: C, D
Molecule details ›
Chains: C, D
Length: 10 nucleotides
Theoretical weight: 3.05 KDa
Source organism: Mycoplasma
Expression system: Not provided

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: MPG/DESY, HAMBURG BEAMLINE BW6
Spacegroup: P212121
Unit cell:
a: 58.4Å b: 72.47Å c: 121.67Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.18 0.18 0.213
Expression systems:
  • Escherichia coli
  • Not provided