PDBe 1f4r

X-ray diffraction
2.4Å resolution

CRYSTAL STRUCTURE OF THE HUMAN AAG DNA REPAIR GLYCOSYLASE COMPLEXED WITH 1,N6-ETHENOADENINE-DNA

Released:

Function and Biology Details

Reaction catalysed:
Hydrolysis of alkylated DNA, releasing 3-methyladenine, 3-methylguanine, 7-methylguanine and 7-methyladenine. 
Biochemical function:
Biological process:
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
hetero trimer (preferred)
Entry contents:
1 distinct polypeptide molecule
2 distinct DNA molecules
Macromolecules (3 distinct):
DNA-3-methyladenine glycosylase Chain: A
Molecule details ›
Chain: A
Length: 219 amino acids
Theoretical weight: 24.33 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: P29372 (Residues: 80-298; Coverage: 74%)
Gene names: AAG, ANPG, MID1, MPG
Sequence domains: Methylpurine-DNA glycosylase (MPG)
Structure domains: 3-methyladenine DNA Glycosylase; Chain A
DNA (5'-D(*GP*GP*CP*AP*AP*TP*CP*AP*TP*GP*TP*CP*A)-3') Chain: E
Molecule details ›
Chain: E
Length: 13 nucleotides
Theoretical weight: 3.98 KDa
Source organism: Synthetic construct
Expression system: Not provided
DNA (5'-D(*GP*AP*CP*AP*TP*GP*(EDA)P*TP*TP*GP*CP*CP*T)-3') Chain: D
Molecule details ›
Chain: D
Length: 13 nucleotides
Theoretical weight: 3.99 KDa
Source organism: Synthetic construct
Expression system: Not provided

Ligands and Environments

1 bound ligand:

1 modified residue:

Experiments and Validation Details

Entry percentile scores
X-ray source: NSLS BEAMLINE X25
Spacegroup: P212121
Unit cell:
a: 42.1Å b: 57.3Å c: 125.5Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.239 0.239 0.276
Expression systems:
  • Escherichia coli
  • Not provided