1ee8

X-ray diffraction
1.9Å resolution

CRYSTAL STRUCTURE OF MUTM (FPG) PROTEIN FROM THERMUS THERMOPHILUS HB8

Released:

Function and Biology Details

Reactions catalysed:
Hydrolysis of DNA containing ring-opened 7-methylguanine residues, releasing 2,6-diamino-4-hydroxy-5-(N-methyl)formamidopyrimidine
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:
homo dimer (preferred)
PDBe Complex ID:
PDB-CPX-129330 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Formamidopyrimidine-DNA glycosylase Chains: A, B
Molecule details ›
Chains: A, B
Length: 266 amino acids
Theoretical weight: 29.83 KDa
Source organism: Thermus thermophilus HB8
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: O50606 (Residues: 2-267; Coverage: 100%)
Gene names: TTHA1806, fpg, mutM
Sequence domains:
Structure domains:

Ligands and Environments

1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SPRING-8 BEAMLINE BL45XU
Spacegroup: P21
Unit cell:
a: 44.421Å b: 61.289Å c: 98.342Å
α: 90° β: 91.71° γ: 90°
R-values:
R R work R free
0.214 0.214 0.258
Expression system: Escherichia coli BL21(DE3)