6tc6

X-ray diffraction
2.9Å resolution

Crystal structure of MutM from Neisseria meningitidis

Released:
Primary publication:
Conformational changes of DNA repair glycosylase MutM triggered by DNA binding.
FEBS Lett 594 3032-3044 (2020)
PMID: 32598485

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:
monomeric (preferred)
PDBe Complex ID:
PDB-CPX-125117 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Formamidopyrimidine-DNA glycosylase Chains: A, C
Molecule details ›
Chains: A, C
Length: 275 amino acids
Theoretical weight: 30.9 KDa
Source organism: Neisseria meningitidis alpha522
Expression system: Escherichia coli
UniProt:
  • Canonical: I4E596 (Residues: 1-275; Coverage: 100%)
Gene names: NMALPHA522_0971, fpg, mutM
Sequence domains:

Ligands and Environments

1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: BESSY BEAMLINE 14.1
Spacegroup: P2
Unit cell:
a: 66.378Å b: 37.96Å c: 110.303Å
α: 90° β: 89.97° γ: 90°
R-values:
R R work R free
0.248 0.245 0.298
Expression system: Escherichia coli