Results 11 to 20 of about 251,937 (291)

Identification, Expression and Activity of Candidate Nitrite Reductases From Orange Beggiatoaceae, Guaymas Basin [PDF]

open access: yesFrontiers in Microbiology, 2019
Orange filamentous Beggiatoaceae form massive microbial mats on hydrothermal sediments in Guaymas Basin; these bacteria are considered to oxidize sulfide with nitrate and nitrite as electron acceptors.
Andrew Buckley   +2 more
doaj   +3 more sources

Identification of a tyrosine switch in copper-haem nitrite reductases [PDF]

open access: yesIUCrJ, 2018
There are few cases where tyrosine has been shown to be involved in catalysis or the control of catalysis despite its ability to carry out chemistry at much higher potentials (1 V versus NHE). Here, it is shown that a tyrosine that blocks the hydrophobic
Jianshu Dong   +4 more
doaj   +3 more sources

Molybdenum-containing nitrite reductases: Spectroscopic characterization and redox mechanism. [PDF]

open access: yesRedox Rep, 2017
Objectives: This review summarizes the spectroscopic results, which will provide useful suggestions for future research. In addition, the fields that urgently need more information are also advised.
Wang J, Keceli G, Cao R, Su J, Mi Z.
europepmc   +2 more sources

Intramolecular Electron Transfer in Nitrite Reductases [PDF]

open access: yesChemPhysChem, 2005
AbstractThe copper‐ and heme‐containing nitrite reductases (NiRs) are key enzymes in denitrification. Their subunits contain two distinct redox‐active metal centers, an electron‐accepting site and a nitrite‐reducing site, to carry out the single‐electron reduction of nitrite to nitic oxide. Catalytic cycles of both enzyme families employ intramolecular
Israel Pecht, Ole Farver, Scot Wherland
openaire   +4 more sources

A Novel Nitrite Reductase from Acinetobacter haemolyticus for Efficient Degradation of Nitrite [PDF]

open access: yesBiomolecules
Nitrite reductases play a crucial role in the nitrogen cycle, demonstrating significant potential for applications in the food industry and environmental remediation, particularly for nitrite degradation and detection.
Xiao-Yan Yin   +3 more
doaj   +2 more sources

Induction of the Nitrate Assimilation nirA Operon and Protein-Protein Interactions in the Maturation of Nitrate and Nitrite Reductases in the Cyanobacterium Anabaena sp. Strain PCC 7120. [PDF]

open access: yesJ Bacteriol, 2015
Nitrate is widely used as a nitrogen source by cyanobacteria, in which the nitrate assimilation structural genes frequently constitute the so-called nirA operon.
Frías JE, Flores E.
europepmc   +2 more sources

Immunocytochemical Localization of Nitrite Reductase in Green Algae [PDF]

open access: bronzePlant Physiology, 1991
The distribution of nitrite reductase (EC 1.7.7.1) in the green algae Chlamydomonas reinhardtii, Monoraphidium braunii, Chlorella fusca, and Scenedesmus obliquus was studied by immunoelectron microscopy. The labeling of ultrathin cryosections was performed with anti-nitrite reductase antibodies followed by gold-labeled goat anti-rabbit antibodies. In C.
Antonio López-Ruiz   +3 more
openalex   +6 more sources

Co‐regulated expression of nitrate and nitrite reductases

open access: yesThe Plant Journal, 1991
SummaryThe regulation of nitrate and nitrite reductases (NR and NiR, respectively) expression was compared in wild‐type and NR‐deficient (n/a) Nicotiana plumbaginifolia plants. In wild‐type plants, NiR and NR mRNA levels fluctuated according to a circadian rhythm, with similar timing of maximal and minimal transcript accumulation.
Faure, Jean Denis   +3 more
openaire   +4 more sources

Endothelial alpha globin is a nitrite reductase [PDF]

open access: yesNature Communications, 2021
AbstractResistance artery vasodilation in response to hypoxia is essential for matching tissue oxygen and demand. In hypoxia, erythrocytic hemoglobin tetramers produce nitric oxide through nitrite reduction. We hypothesized that the alpha subunit of hemoglobin expressed in endothelium also facilitates nitrite reduction proximal to smooth muscle.
Kwangseok Hong   +29 more
openaire   +4 more sources

Site Directed Mutagenesis of Nitrite Reductase. The Crystallographic Studies of Recombinant Nitrite Reductase and Mutations [PDF]

open access: bronzeActa Crystallographica Section A Foundations of Crystallography, 2000
Mark J. Ellis   +6 more
openalex   +3 more sources

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