Nitrite reductase: Difference between revisions

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Revision as of 16:24, 9 May 2012 view source Alexander Berchansky (talk \| contribs) 29,637 edits No edit summary ← Older edit		Revision as of 16:25, 9 May 2012 view source Alexander Berchansky (talk \| contribs) 29,637 edits No edit summary Newer edit →
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	{{STRUCTURE_1as8\| PDB=1as8 \| SIZE=~~500~~\| SCENE= \|right\|CAPTION=Copper-containing nitric reductase complex with NO2 [[1as8]] }}		{{STRUCTURE_1as8\| PDB=1as8 \| SIZE=300\| SCENE= \|right\|CAPTION=Copper-containing nitric reductase complex with NO2 [[1as8]] }}

	'''Nitrite reductase''' (NIR) catalyzes the reduction of NO2 to NO. There are 2 classes of NIR: (1) A heme-containing cytochrome Cd type NIR. This enzyme contains 4 heme groups. Its d-type heme group binds NO2. (2) A copper-containing NIR which produces NO2. Under anaerobic conditions bacteria rely on the reduction of nitrogen oxide species to obtain energy. NIR is part of the nitrogen cycle used fot this purpose.		'''Nitrite reductase''' (NIR) catalyzes the reduction of NO2 to NO. There are 2 classes of NIR: (1) A heme-containing cytochrome Cd type NIR. This enzyme contains 4 heme groups. Its d-type heme group binds NO2. (2) A copper-containing NIR which produces NO2. Under anaerobic conditions bacteria rely on the reduction of nitrogen oxide species to obtain energy. NIR is part of the nitrogen cycle used fot this purpose.