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CATH Classification

Domain Context

CATH Clusters

Superfamily 1.10.520.10
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 4PAE
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.
Kamachi, S., Hirabayashi, K., Tamoi, M., Shigeoka, S., Tada, T., Wada, K.
Febs Lett.
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