Enzymes
| UniProtKB help_outline | 1 proteins |
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| GO Molecular Function help_outline |
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Reaction participants Show >> << Hide
- Name help_outline H2O Identifier CHEBI:15377 (Beilstein: 3587155; CAS: 7732-18-5) help_outline Charge 0 Formula H2O InChIKeyhelp_outline XLYOFNOQVPJJNP-UHFFFAOYSA-N SMILEShelp_outline [H]O[H] 2D coordinates Mol file for the small molecule Search links Involved in 6,204 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline nitrite Identifier CHEBI:16301 (CAS: 14797-65-0) help_outline Charge -1 Formula NO2 InChIKeyhelp_outline IOVCWXUNBOPUCH-UHFFFAOYSA-M SMILEShelp_outline [O-]N=O 2D coordinates Mol file for the small molecule Search links Involved in 79 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
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Namehelp_outline
oxidized [2Fe-2S]-[ferredoxin]
Identifier
RHEA-COMP:10000
Reactive part
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- Name help_outline [2Fe-2S]2+ Identifier CHEBI:33737 Charge 2 Formula Fe2S2 InChIKeyhelp_outline XSOVBBGAMBLACL-UHFFFAOYSA-N SMILEShelp_outline S1[Fe+]S[Fe+]1 2D coordinates Mol file for the small molecule Search links Involved in 238 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline H+ Identifier CHEBI:15378 Charge 1 Formula H InChIKeyhelp_outline GPRLSGONYQIRFK-UHFFFAOYSA-N SMILEShelp_outline [H+] 2D coordinates Mol file for the small molecule Search links Involved in 9,431 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline nitrate Identifier CHEBI:17632 (Beilstein: 3587575; CAS: 14797-55-8) help_outline Charge -1 Formula NO3 InChIKeyhelp_outline NHNBFGGVMKEFGY-UHFFFAOYSA-N SMILEShelp_outline [O-][N+]([O-])=O 2D coordinates Mol file for the small molecule Search links Involved in 26 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
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Namehelp_outline
reduced [2Fe-2S]-[ferredoxin]
Identifier
RHEA-COMP:10001
Reactive part
help_outline
- Name help_outline [2Fe-2S]1+ Identifier CHEBI:33738 Charge 1 Formula Fe2S2 InChIKeyhelp_outline MAGIRAZQQVQNKP-UHFFFAOYSA-N SMILEShelp_outline S1[Fe]S[Fe+]1 2D coordinates Mol file for the small molecule Search links Involved in 238 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
Cross-references
| RHEA:21828 | RHEA:21829 | RHEA:21830 | RHEA:21831 | |
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| Reaction direction help_outline | undefined | left-to-right | right-to-left | bidirectional |
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Related reactions help_outline
More general form(s) of this reaction
Publications
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Assimilatory nitrate reductase from the haloarchaeon Haloferax mediterranei: purification and characterisation.
Martinez-Espinosa R.M., Marhuenda-Egea F.C., Bonete M.J.
Haloferax mediterranei can use nitrate as sole nitrogen source during aerobic growth. We report here the purification and biochemical characterisation of the assimilatory nitrate reductase (EC 1.6.6.2) from H. mediterranei. The enzyme, as isolated, was composed of two subunits (105+/-1.3 kDa and 5 ... >> More
Haloferax mediterranei can use nitrate as sole nitrogen source during aerobic growth. We report here the purification and biochemical characterisation of the assimilatory nitrate reductase (EC 1.6.6.2) from H. mediterranei. The enzyme, as isolated, was composed of two subunits (105+/-1.3 kDa and 50+/-1.3 kDa) and behaved as a dimer during gel filtration (132+/-6 kDa). A pH of 9 and elevated temperatures up to 80 degrees C (at 3.1 M NaCl) are necessary for optimum activity. The enzyme stability and activity of the enzyme depend upon the salt concentration. Reduced methyl viologen was as effective as the natural electron donor ferredoxin in the catalytic process. In contrast, NADPH and NADH, which are electron donors in nitrate reductases from different non-photosynthetic bacteria, were ineffective. << Less
FEMS Microbiol. Lett. 204:381-385(2001) [PubMed] [EuropePMC]