Catalase: Difference between revisions

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{{STRUCTURE_1gge| PDB=1gge | SIZE=400| SCENE= |right|CAPTION=E. coli catalase Hpii tetramer showing the heme group, [[1gge]] }}

'''Catalase''' (CAT) catalyzes the conversion of hydrogen peroxide to water and oxygen. CAT contains porphyrin-heme Fe group which reacts with the hydrogen peroxide. CAT containing Mn are called pseudocatalase (PCAT). '''Catalase-peroxidase''' (CAT KatG) is a bifunctional enzyme with both catalase and peroxidase activities. CAT KatG cofactor is a heme group. It provides defense against oxidative stress by reducing hydrogen peroxide. Mutations in CAT KatG can cause resistance to the anti-malarial drug isoniazid (INH). '''Catalase-phenol oxidase''' (CATPO) is a heme-containing CAT which shows phenol oxidase activity.

'''Catalase''' (CAT) catalyzes the conversion of hydrogen peroxide to water and oxygen. CAT contains porphyrin-heme Fe group which reacts with the hydrogen peroxide. CAT containing Mn are called pseudocatalase (PCAT). '''Catalase-peroxidase''' (CAT KatG) is a bifunctional enzyme with both catalase and peroxidase activities. CAT KatG cofactor is a <scene name='57/578105/Heme/1'>heme</scene> group. It provides defense against oxidative stress by reducing hydrogen peroxide. Mutations in CAT KatG can cause resistance to the anti-malarial drug isoniazid (INH). '''Catalase-phenol oxidase''' (CATPO) is a heme-containing CAT which shows phenol oxidase activity.

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Revision as of 13:18, 17 February 2014 view source Michal Harel (talk \| contribs) 32,831 edits No edit summary ← Older edit		Revision as of 16:04, 28 February 2014 view source Ann Taylor (talk \| contribs) 1,015 edits No edit summary Newer edit →
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	{{STRUCTURE_1gge\| PDB=1gge \| SIZE=400\| SCENE= \|right\|CAPTION=E. coli catalase Hpii tetramer showing the heme group, [[1gge]] }}		{{STRUCTURE_1gge\| PDB=1gge \| SIZE=400\| SCENE= \|right\|CAPTION=E. coli catalase Hpii tetramer showing the heme group, [[1gge]] }}

	'''Catalase''' (CAT) catalyzes the conversion of hydrogen peroxide to water and oxygen. CAT contains porphyrin-heme Fe group which reacts with the hydrogen peroxide. CAT containing Mn are called pseudocatalase (PCAT). '''Catalase-peroxidase''' (CAT KatG) is a bifunctional enzyme with both catalase and peroxidase activities. CAT KatG cofactor is a heme group. It provides defense against oxidative stress by reducing hydrogen peroxide. Mutations in CAT KatG can cause resistance to the anti-malarial drug isoniazid (INH). '''Catalase-phenol oxidase''' (CATPO) is a heme-containing CAT which shows phenol oxidase activity.		'''Catalase''' (CAT) catalyzes the conversion of hydrogen peroxide to water and oxygen. CAT contains porphyrin-heme Fe group which reacts with the hydrogen peroxide. CAT containing Mn are called pseudocatalase (PCAT). '''Catalase-peroxidase''' (CAT KatG) is a bifunctional enzyme with both catalase and peroxidase activities. CAT KatG cofactor is a <scene name='57/578105/Heme/1'>heme</scene> group. It provides defense against oxidative stress by reducing hydrogen peroxide. Mutations in CAT KatG can cause resistance to the anti-malarial drug isoniazid (INH). '''Catalase-phenol oxidase''' (CATPO) is a heme-containing CAT which shows phenol oxidase activity.