1yqk

X-ray diffraction
2.5Å resolution

Human 8-oxoguanine glycosylase crosslinked with guanine containing DNA

Released:

Function and Biology Details

Reaction catalysed:
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

Structure analysis Details

Assembly composition:
hetero trimer (preferred)
PDBe Complex ID:
PDB-CPX-114866 (preferred)
Entry contents:
1 distinct polypeptide molecule
2 distinct DNA molecules
Macromolecules (3 distinct):
N-glycosylase/DNA lyase Chain: A
Molecule details ›
Chain: A
Length: 319 amino acids
Theoretical weight: 35.97 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: O15527 (Residues: 12-327; Coverage: 92%)
Gene names: MMH, MUTM, OGG1, OGH1
Sequence domains:
Structure domains:
5'-D(*GP*GP*TP*AP*GP*AP*CP*CP*TP*GP*G)-3' Chain: B
Molecule details ›
Chain: B
Length: 11 nucleotides
Theoretical weight: 3.41 KDa
Source organism: Homo sapiens
Expression system: Not provided
5'-D(P*CP*AP*GP*GP*TP*CP*TP*AP*C)-3' Chain: C
Molecule details ›
Chain: C
Length: 9 nucleotides
Theoretical weight: 2.72 KDa
Source organism: Homo sapiens
Expression system: Not provided

Ligands and Environments

2 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: CHESS BEAMLINE A1
Spacegroup: P6522
Unit cell:
a: 92.358Å b: 92.358Å c: 211.312Å
α: 90° β: 90° γ: 120°
R-values:
R R work R free
0.235 0.235 0.27
Expression systems:
  • Escherichia coli BL21(DE3)
  • Not provided