CATH Classification
| Level | CATH Code | Description | 
|---|---|---|
|   | 1 | Mainly Alpha | 
|   | 1.10 | Orthogonal Bundle | 
|   | 1.10.420 | Peroxidase; domain 2 | 
|   | 1.10.420.10 | Peroxidase, domain 2 | 
Domain Context
CATH Clusters
| Superfamily | Peroxidase, domain 2 | 
| Functional Family | Catalase-peroxidase | 
Enzyme Information
| 1.11.1.21 | Catalase peroxidase. based on mapping to UniProt Q31MN3 (1) Donor + H(2)O(2) = oxidized donor + 2 H(2)O. (2) 2 H(2)O(2) = O(2) + 2 H(2)O. -!- Differs from EC 1.11.1.7, peroxidase, in having a relatively high catalase (EC 1.11.1.6) activity with H(2)O(2) as donor, releasing O(2); both activities use the same heme active site. -!- In Mycobacterium tuberculosis it is responsible for activation of the commonly used antitubercular drug, isoniazid. | 
UniProtKB Entries (1)
| Q31MN3 | KATG_SYNE7 Synechococcus elongatus PCC 7942 Catalase-peroxidase | 
PDB Structure
| PDB | 3X16 | 
| External Links | |
| Method | X-RAY DIFFRACTION | 
| Organism | |
| Primary Citation | Crystal structure of the catalase-peroxidase KatG W78F mutant from Synechococcus elongatus PCC7942 in complex with the antitubercular pro-drug isoniazid. Febs Lett. | 
