CATH Classification

Domain Context

CATH Clusters

Superfamily 1.10.520.10
Functional Family

Enzyme Information

1.11.1.21
Catalase peroxidase.
based on mapping to UniProt O59651
(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)

O59651
KATG2_HALMA
Haloarcula marismortui ATCC 43049
Catalase-peroxidase 2

PDB Structure

PDB 1ITK
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
The 2.0 A crystal structure of catalase-peroxidase from Haloarcula marismortui.
Yamada, Y., Fujiwara, T., Sato, T., Igarashi, N., Tanaka, N.
Nat.Struct.Biol.