Nitrate reductase - Wikipedia
WEBNitrate reductases are molybdoenzymes that reduce nitrate (NO−. 3) to nitrite (NO−. 2). This reaction is critical for the production of protein in most crop plants, as nitrate is the predominant source of nitrogen in fertilized soils. [2] Types. Eukaryotic nitrate reductases are part of the sulfite oxidase family of molybdoenzymes.
NITRATE REDUCTASE STRUCTURE, FUNCTION AND …
WEBNitrate reductase (NR; EC 1.6.6.1-3) catalyzes NAD (P)H reduction of nitrate to nitrite. NR serves plants, algae, and fungi as a central point for integration of metabolism by governing flux of reduced nitrogen by several regulatory mechanisms.
Nitrate reductase is a key enzyme responsible for nitrogen-regulated ...
WEBNov 19, 2020 · Nitrate reductase (NR) is one of the key enzymes for plant nitrogen assimilation and root architecture remodeling. However, crosstalk between NR-mediated signaling and auxin-mediated root development in nitrogen-status responses has not been investigated in details before.
Structural and mechanistic insights on nitrate reductases
WEBSep 22, 2015 · Nitrate reductases possess diverse cellular location, active site structure and function and have been classified into three distinct types: dissimilatory periplasmic nitrate reductases (Nap), respiratory membrane‐bound nitrate reductases (Nar), and assimilatory cytoplasmic nitrate reductases (Nas). 23, 24, 25, 26.
Nitrate Reductase - an overview | ScienceDirect Topics
WEBNitrate reductase is a key enzyme in nitrogen assimilation, and it catalyzes the nitrate-to-nitrite reduction process in plants. A variety of factors, including nitrate, light, metabolites, phytohormones, low temperature, and drought, modulate the expression levels of nitrate reductase genes as well as nitrate reductase activity, which is ...
Structural and functional characterization of the ... - Nature
WEBJul 15, 2021 · We find that NXR catalyses both nitrite oxidation and nitrate reduction, and show that in the cell, NXR is arranged in tubules several hundred nanometres long.
Nitrate Reductase - an overview | ScienceDirect Topics
WEBNitrate reductase is an enzyme found in E. coli that plays a role in electron transfer from the periplasmic active site of FdhN or Hya. It is composed of three subunits and contains molybdopterin cofactor and iron-sulfur clusters. The enzyme contributes to the generation of a proton electrochemical gradient across the membrane.
Structural and mechanistic insights on nitrate reductases
WEBNitrate reductases (NR) belong to the DMSO reductase family of Mo-containing enzymes and perform key roles in the metabolism of the nitrogen cycle, reducing nitrate to nitrite. Due to variable cell location, structure and function, they have been divided into periplasmic (Nap), cytoplasmic, and membrane-bound (Nar) nitrate reductases.
Structural and mechanistic insights on nitrate reductases
WEBSep 12, 2015 · Nitrate reductases possess diverse cellular location, active site structure and function and have been classified into three distinct types: dissimilatory periplasmic nitrate reductases (Nap), respiratory membrane-bound nitrate reductases (Nar), and assimilatory cytoplasmic nitrate reductases (Nas). 23 - 26.
Nitrate reductases: structure, functions, and effect of stress
WEBNitrate Reductase. Nitrogen. Oxygen. Structural and functional peculiarities of four types of nitrate reductases are considered: assimilatory nitrate reductase of eukaryotes, as well as cytoplasmic assimilatory, membrane-bound respiratory, and periplasmic dissimilatory bacterial nitrate reductases. Arguments are presented showing that ….
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