1sfe

X-ray diffraction
2.1Å resolution

ADA O6-METHYLGUANINE-DNA METHYLTRANSFERASE FROM ESCHERICHIA COLI

Released:

Function and Biology Details

Reactions catalysed:
DNA (containing 4-O-methylthymine) + protein L-cysteine = DNA (without 4-O-methylthymine) + protein S-methyl-L-cysteine
DNA (containing Sp-methylphosphotriester) + protein L-cysteine = DNA (without Sp-methylphosphotriester) + protein S-methyl-L-cysteine 
Biological process:
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
monomeric (preferred)
PDBe Complex ID:
PDB-CPX-138880 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Bifunctional transcriptional activator/DNA repair enzyme Ada Chain: A
Molecule details ›
Chain: A
Length: 180 amino acids
Theoretical weight: 19.77 KDa
Source organism: Escherichia coli B
Expression system: Escherichia coli
UniProt:
  • Canonical: P06134 (Residues: 175-354; Coverage: 51%)
Gene names: JW2201, ada, b2213
Sequence domains:
Structure domains:

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: PHOTON FACTORY BEAMLINE BL-6A, RIGAKU RU300
Spacegroup: P21
Unit cell:
a: 46.2Å b: 45.95Å c: 46.4Å
α: 90° β: 114.06° γ: 90°
R-values:
R R work R free
0.219 0.219 not available
Expression system: Escherichia coli