|Domain Trusted Cutoff||770.25|
|Domain Noise Cutoff||427.70|
|Mainrole Category||Cellular processes|
|Gene Ontology Term||GO:0004096: catalase activity molecular_function|
| ||GO:0004601: peroxidase activity molecular_function|
| ||GO:0006979: response to oxidative stress biological_process|
|Entry Date||Apr 20 1999 2:06PM|
|Last Modified||Feb 14 2011 3:27PM|
|Comment||As catalase, this enzyme catalyzes the dismutation of two molecules of hydrogen peroxide to dioxygen and two molecules of water. As a peroxidase, it uses hydrogen peroxide to oxidize donor compounds and produce water.
KatG from E. coli is a homotetramer with two non-covalently associated iron protoheme IX groups per tetramer, but the ortholog from Synechococcus sp. is a homodimer with one protoheme.
Important sites (numbered according to E. coli KatG) include heme ligands His-106 and His-267 and active site Trp-318.
Note that the translation PID:g296476 from accession X71420 from Rhodobacter capsulatus B10 contains extensive frameshift differences from the rest of the orthologous family.|
DR HAMAP; MF_01961; 279 of 304|
|Genome Property||GenProp0213: Resistance to Reactive Oxygen Species (ROS) (HMM)|
| ||GenProp0213: Resistance to Reactive Oxygen Species (ROS) (HMM)|
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