3ga6

X-ray diffraction
1.9Å resolution

Mth0212 in complex with two DNA helices

Released:

Function and Biology Details

Reactions catalysed:
Exonucleolytic cleavage in the 3'- to 5'-direction to yield nucleoside 5'-phosphates
The C-O-P bond 3' to the apurinic or apyrimidinic site in DNA is broken by a beta-elimination reaction, leaving a 3'-terminal unsaturated sugar and a product with a terminal 5'-phosphate
Biological process:
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
hetero trimer (preferred)
PDBe Complex ID:
PDB-CPX-116289 (preferred)
Entry contents:
1 distinct polypeptide molecule
2 distinct DNA molecules
Macromolecules (3 distinct):
DNA uridine endonuclease Chains: A, B
Molecule details ›
Chains: A, B
Length: 265 amino acids
Theoretical weight: 31.43 KDa
Source organism: Methanothermobacter thermautotrophicus str. Delta H
Expression system: Escherichia coli
UniProt:
  • Canonical: O26314 (Residues: 1-257; Coverage: 100%)
Gene name: MTH_212
Sequence domains: Endonuclease/Exonuclease/phosphatase family
Structure domains: Endonuclease/exonuclease/phosphatase
5'-D(*GP*CP*TP*GP*CP*GP*CP*AP*GP*GP*GP*C)-3' Chains: F, H
Molecule details ›
Chains: F, H
Length: 12 nucleotides
Theoretical weight: 3.7 KDa
Source organism: Methanothermobacter thermautotrophicus str. Delta H
Expression system: Not provided
5'-D(*GP*CP*CP*CP*TP*GP*UP*GP*CP*AP*GP*C)-3' Chains: D, G
Molecule details ›
Chains: D, G
Length: 12 nucleotides
Theoretical weight: 3.63 KDa
Source organism: Methanothermobacter thermautotrophicus str. Delta H
Expression system: Not provided

Ligands and Environments

3 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: BESSY BEAMLINE 14.2
Spacegroup: P21
Unit cell:
a: 54.834Å b: 126.655Å c: 54.826Å
α: 90° β: 93.14° γ: 90°
R-values:
R R work R free
0.158 0.155 0.203
Expression systems:
  • Escherichia coli
  • Not provided