› 8j4q

X-ray diffraction
2.1Å resolution

Crystal structure of eKatE (extra KatE) from atypical E. coli

Released:
DOI: 10.2210/pdb8j4q/pdb
PDB entry 8j4q coloured by chain, front view.
PDB entry 8j4q coloured by chain, side view.
PDB entry 8j4q coloured by chain, top view.
Source organism: Escherichia coli
Entry author: Yoo Y

Function and Biology Details

Reaction catalysed: 
2 H(2)O(2) = O(2) + 2 H(2)O
Biochemical function:
Biological process:
Cellular component:

Structure analysis Details

Assembly composition:
hetero tetramer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-269477 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Catalase Chain: A
Molecule details ›
Chain: A
Length: 750 amino acids
Theoretical weight: 84.49 KDa
Source organism: Escherichia coli
Expression system: Escherichia coli
UniProt:
  • Canonical: A0A6I8WFM0 (Residues: 1-750; Coverage: 100%)
Gene name: B2H83_27520
Sequence domains:
Catalase Chains: B, C, D
Molecule details ›
Chains: B, C, D
Length: 750 amino acids
Theoretical weight: 84.48 KDa
Source organism: Escherichia coli
Expression system: Escherichia coli
UniProt:
  • Canonical: A0A6I8WFM0 (Residues: 1-750; Coverage: 100%)
Gene name: B2H83_27520
Sequence domains:

Ligands and Environments


Cofactor: Ligand HEM 4 x HEM
No bound ligands
2 modified residues:
Ligand OCS 1 x OCS
Ligand CSD 3 x CSD

Experiments and Validation Details

Entry percentile scores
X-ray source: PHOTON FACTORY BEAMLINE BL-17A
Spacegroup: P21
Unit cell:
a: 76.585Å b: 178.935Å c: 107.279Å
α: 90° β: 106.7° γ: 90°
R-values:
R R work R free
0.173 0.173 0.213
Expression system: Escherichia coli

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