Structure of the Thioalkalivibrio nitratireducens cytochrome c nitrite reductase in complex with sulfiteStructure of the Thioalkalivibrio nitratireducens cytochrome c nitrite reductase in complex with sulfite
Structural highlights
3f29 is a 2 chain structure with sequence from Thioalkalivibrio nitratireducens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
NIR_THIND Catalyzes the reduction of nitrite to ammonia, consuming six electrons in the process (PubMed:16500161, PubMed:22281743). Has very low activity toward hydroxylamine (PubMed:16500161). Has even lower activity toward sulfite (PubMed:16500161, PubMed:22281743). Sulfite reductase activity is maximal at neutral pH (PubMed:20944237).[1][2][3]
Evolutionary Conservation
Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.
↑Tikhonova TV, Slutsky A, Antipov AN, Boyko KM, Polyakov KM, Sorokin DY, Zvyagilskaya RA, Popov VO. Molecular and catalytic properties of a novel cytochrome c nitrite reductase from nitrate-reducing haloalkaliphilic sulfur-oxidizing bacterium Thioalkalivibrio nitratireducens. Biochim Biophys Acta. 2006 Apr;1764(4):715-23. Epub 2006 Feb 9. PMID:16500161 doi:http://dx.doi.org/10.1016/j.bbapap.2005.12.021
↑Trofimov AA, Polyakov KM, Boyko KM, Tikhonova TV, Safonova TN, Tikhonov AV, Popov AN, Popov VO. Structures of complexes of octahaem cytochrome c nitrite reductase from Thioalkalivibrio nitratireducens with sulfite and cyanide. Acta Crystallogr D Biol Crystallogr. 2010 Oct;66(Pt 10):1043-7. Epub 2010, Sep 18. PMID:20944237 doi:10.1107/S0907444910031665
↑Trofimov AA, Polyakov KM, Tikhonova TV, Tikhonov AV, Safonova TN, Boyko KM, Dorovatovskii PV, Popov VO. Covalent modifications of the catalytic tyrosine in octahaem cytochrome c nitrite reductase and their effect on the enzyme activity. Acta Crystallogr D Biol Crystallogr. 2012 Feb;68(Pt 2):144-53. Epub 2012, Jan 13. PMID:22281743 doi:10.1107/S0907444911052632
