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   Articles with "nitrite reductase" as a keyword



The Mechanism of Nitrite Reductase

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recommendations! Published in 2025 at "Journal of Computational Chemistry"

DOI: 10.1002/jcc.70088

Abstract: Cytochrome c nitrite reductase (CcNiR) activates nitrite and produces ammonia. It is one of several enzymes that use a redox‐active cofactor to perform its reaction. In this case, the cofactor has a heme with a… read more here.

Keywords: chemistry; methodology; nitrite reductase; mechanism ... See more keywords

Revisiting the nitrite reductase activity of hemoglobin with differential pulse voltammetry.

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recommendations! Published in 2020 at "Analytica chimica acta"

DOI: 10.1016/j.aca.2019.12.071

Abstract: Nitric oxide (NO) is an omnipresent signalling molecule in all vertebrates. NO modulates blood flow and neural activity. Nitrite anion is one of the most important sources of NO. Nitrite is reduced to NO by… read more here.

Keywords: reduction; hemoglobin; nitrite reductase; reductase activity ... See more keywords

Insights into the Direct Photoelectron Transfer Mechanism in Cofactor-free Redox Carbon Dots and Cytochrome c Nitrite Reductase Biohybrids Responsible for Ammonia Synthesis.

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recommendations! Published in 2025 at "Environmental science & technology"

DOI: 10.1021/acs.est.4c14310

Abstract: Highly efficient NH3 production has been reported to be achieved by photosensitizing Shewanella oneidensis MR-1 using carbon dots (CDs). During this process, cytochrome c nitrite reductase (NrfA) is regarded as the rate-limiting enzyme. However, the… read more here.

Keywords: cytochrome nitrite; carbon dots; nitrite reductase; transfer ... See more keywords

Revving up a Designed Copper Nitrite Reductase Using Non-Coded Active Site Ligands.

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recommendations! Published in 2024 at "ACS catalysis"

DOI: 10.1021/acscatal.3c06159

Abstract: Herein, we report a three stranded coiled-coil (3SCC) de novo protein containing a type II copper center (CuT2) composed of 6-membered ring N-heterocycles. This design yields the most active homogenous copper nitrite reductase (CuNiR) mimic… read more here.

Keywords: pyridine; active site; site; copper ... See more keywords
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Impaired xanthine oxidoreductase (XOR)-mediated nitrite reductase activity possibly involved in the lack of antihypertensive effects of XOR inhibitors

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recommendations! Published in 2017 at "Hypertension Research"

DOI: 10.1038/hr.2016.138

Abstract: Impaired xanthine oxidoreductase (XOR)-mediated nitrite reductase activity possibly involved in the lack of antihypertensive effects of XOR inhibitors read more here.

Keywords: oxidoreductase xor; impaired xanthine; nitrite reductase; mediated nitrite ... See more keywords

Protein NirP1 regulates nitrite reductase and nitrite excretion in cyanobacteria

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recommendations! Published in 2024 at "Nature Communications"

DOI: 10.1038/s41467-024-46253-4

Abstract: When the supply of inorganic carbon is limiting, photosynthetic cyanobacteria excrete nitrite, a toxic intermediate in the ammonia assimilation pathway from nitrate. It has been hypothesized that the excreted nitrite represents excess nitrogen that cannot… read more here.

Keywords: nitrite reductase; nitrite excretion; interacts nitrite; carbon ... See more keywords

A three-domain copper-nitrite reductase with a unique sensing loop

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recommendations! Published in 2019 at "IUCrJ"

DOI: 10.1107/s2052252519000241

Abstract: TsNirK is the first three-copper three-domain nitrite reductase harbouring Gln-coordinated type 1 copper centres. All the structural properties of TsNirK point to an enzyme that, despite having several of the essential catalytic features present in… read more here.

Keywords: nitrite reductase; three domain; sensing loop; copper ... See more keywords

Depth distributions of Nitrite Reductase (nirK) Gene Variants Reveal Spatial Dynamics of Thaumarchaeal Ecotype Populations in Coastal Monterey Bay.

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recommendations! Published in 2019 at "Environmental microbiology"

DOI: 10.1111/1462-2920.14753

Abstract: Ammonia-oxidizing archaea (AOA) of the phylum Thaumarchaeota are key players in nutrient cycling, yet large gaps remain in our understanding of their ecology and metabolism. Despite multiple lines of evidence pointing to a central role… read more here.

Keywords: coastal monterey; ecotype populations; reductase nirk; nitrite reductase ... See more keywords

Solution Structure Determination of a Copper-containing Nitrite Reductase of Achromobacter cycloclastes by Small Angle Neutron Scattering

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recommendations! Published in 2018 at "Chemistry Letters"

DOI: 10.1246/cl.180152

Abstract: A copper-containing nitrite reductase (NiR) catalyzes NO2- reduction in denitrifying bacteria. The reaction mechanism was proposed based on the trimeric crystal structure. In this study, a small angle neutron scattering (SANS) experiment of NiR from… read more here.

Keywords: small angle; copper containing; nitrite reductase; containing nitrite ... See more keywords

Presence of Cu-Type (NirK) and cd1-Type (NirS) Nitrite Reductase Genes in the Denitrifying Bacterium Bradyrhizobium nitroreducens sp. nov.

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recommendations! Published in 2018 at "Microbes and Environments"

DOI: 10.1264/jsme2.me18039

Abstract: Nitrite reductase is a key enzyme for denitrification. There are two types of nitrite reductases: copper-containing NirK and cytochrome cd1-containing NirS. Most denitrifiers possess either nirK or nirS, although a few strains been reported to… read more here.

Keywords: denitrifying bacterium; bradyrhizobium nitroreducens; nitrite reductase; bacterium bradyrhizobium ... See more keywords

The nitrite reductase encoded by nirBDs in Pseudomonas putida Y-9 influences ammonium transformation

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recommendations! Published in 2022 at "Frontiers in Microbiology"

DOI: 10.3389/fmicb.2022.982674

Abstract: It is unknown whether nirBDs, which conventionally encode an NADH nitrite reductase, play other novel roles in nitrogen cycling. In this study, we explored the role of nirBDs in the nitrogen cycling of Pseudomonas putida… read more here.

Keywords: ammonium; ammonium transformation; strain; nitrite reductase ... See more keywords