Results 171 to 180 of about 292,870 (340)

A QM/MM Study of Nitrite Binding Modes in a Three-Domain Heme-Cu Nitrite Reductase

Molecules, 2018
Copper-containing nitrite reductases (CuNiRs) play a key role in the global nitrogen cycle by reducing nitrite (NO2−) to nitric oxide, a reaction that involves one electron and two protons.
Kakali Sen, Michael A. Hough, Richard W. Strange, Chin W. Yong, Thomas W. Keal   +4 more
doaj   +1 more source

The impact of copper, nitrate and carbon status on the emission of nitrous oxide by two species of bacteria with biochemically distinct denitrification pathways [PDF]

, 2012
No Full ...
Alloway, Baker, Bergaust, Bergaust, Brenner, Butland, Granger, Harms, Hutchings, Hutchings, Kihlken, Kuper, Matsubara, Minagawa, Moffett, Moir, Moody, Morrison, Nicholas, Pearson, Pomowski, Ravishankara, Richardson, Rowley, Saunders, Saunders, Scanlan, Solomon, Van Spanning, Van Spanning, Van Verseveld, Wallenstein, Zumft   +32 more
core   +1 more source

Spectroscopic and computational studies of nitrite reductase: proton induced electron transfer and backbonding contributions to reactivity.

Journal of the American Chemical Society, 2009
A combination of spectroscopy and DFT calculations has been used to define the geometric and electronic structure of the nitrite bound type 2 (T2) copper site at high and low pH in nitrite reductase from Rhodobacter sphaeroides.
Somdatta Ghosh, A. Dey, Yan Sun, C. Scholes, E. Solomon   +4 more
semanticscholar   +1 more source

High‐Altitude Open‐Pit Coal Mining has Changed the Sulfur Cycle and Ecological Network of Plant Rhizosphere Microorganisms

Ecology and Evolution, Volume 15, Issue 4, April 2025.
This study explored the changes in functional genes related to sulfur cycling and microbial diversity during different stages of succession following the ecological restoration of a mining site in a cold arid area. A total of three succession stages were selected—natural, secondary, and artificial.
Honglin Liu, Hengfang Wang, Junqing Sun, Tianhong Yang, Zhengxian Mo, Hao Huang, Yabo Pan   +6 more
wiley   +1 more source

Sulfide- and nitrite-dependent nitric oxide production in the intestinal tract [PDF]

, 2011
In the gut ecosystem, nitric oxide (NO) has been described to have damaging effects on the energy metabolism of colonocytes. Described mechanisms of NO production are microbial reduction of nitrate via nitrite to NO and conversion of l-arginine by NO ...
Boeckx, Pascal, Boon, Nico, Van de Wiele, Tom, Van Nieuwenhuyse, Glynn, Vermeiren, Joan, Verstraete, Willy   +5 more
core   +1 more source

Further Characterization of Ferredoxin Nitrite Reductase and the Relationship between the Enzyme and Methyl Viologen-dependent Nitrite Reductase

Agricultural and Biological Chemistry, 1982
Ferredoxin-dependent nitrite reductase of spinach has been further characterized and the relationship between this enzyme and methyl viologen-dependent nitrite reductase studied. Purified ferredoxin nitrite reductase, having a molecular weight of 86, 000, showed 2.5 times higher ferredoxin-dependent activity than methyl viologen-linked activity ...
Masakazu Hirasawa-Soga, Shigeo Horie, Goro Tamura   +2 more
openaire   +3 more sources

The roles of the nitrate reductase NarGHJI, the nitrite reductase NirBD and the response regulator GlnR in nitrate assimilation of Mycobacterium tuberculosis.

Microbiology, 2009
Mycobacterium tuberculosis can utilize various nutrients including nitrate as a source of nitrogen. Assimilation of nitrate requires the reduction of nitrate via nitrite to ammonium, which is then incorporated into metabolic pathways.
S. Malm, Yvonne Tiffert, Julia C. Micklinghoff, S. Schultze, I. Joost, I. Weber, S. Horst, B. Ackermann, M. Schmidt, W. Wohlleben, S. Ehlers, R. Geffers, Jens Reuther, F. Bange   +13 more
semanticscholar   +1 more source

Nutritional Composition, Phytochemical Profile, Extraction Methods of Bioactive Components, and Health Benefits of Terminalia Arjuna Bark

eFood, Volume 6, Issue 2, April 2025.
The plant's bark is rich in polyphenols, particularly gallic acid and ellagic acid derivatives, which are powerful antioxidants. These antioxidants can protect cells from oxidative stress and may help prevent degenerative diseases. Additionally, Terminalia arjuna contains triterpenoids like arjunolic acid and arjunic acid, which have various ...
Hafsa Tahir, Muhammad Nadeem Akhtar, Ashok Kumar Bishoyi, Gaurav Sanghvi, Musarrat Rasheed, Muhammad Afzaal, Ali Imran, Farhan Saeed, Neeraj Khare, Faiyaz Ahmed, Oshin Sahni, Huda Ateeq, Fakhar Islam, Abdela Befa Kinki   +13 more
wiley   +1 more source

Hypoxic modulation of exogenous nitrite-induced vasodilation in humans [PDF]

, 2008
Peer reviewedPublisher ...
Abozguia, Khalid, Ahmed, Ibrar, Ashrafian, Houman, Born, Gustav V. R., Frenneaux, Michael, Gunaruwan, Prasad, James, Philip E., Maher, Abdul R., Milsom, Alexandra B., Thomas, Philip, Weaver, Rebekah A.   +10 more
core   +2 more sources

Nitrite Reductase of Escherichia coli Specific for Reduced Nicotinamide Adenine Dinucleotide [PDF]

, 1966
John D. Kemp, Daniel Atkinson
openalex   +1 more source