Results 81 to 90 of about 347,780 (327)

Bioinspired Interfacial Hydration Engineering via Metal–Organic Frameworks for Efficient Nitrate‐To‐Ammonia Conversion in Neutral Media

Advanced Science, EarlyView.
Inspired by Nitrite reductase, a metal–organic framework overlayer is introduced to regulate the interfacial hydration microenvironment on Cu electrodes, enriching hydrated K+ species that act as efficient proton donors. This strategy enables nitrate‐to‐ammonia conversion with near‐unity selectivity at industrial‐level current densities in neutral ...
Yuyin Mao, Minghui Zhang, Xiangdong Xue, Chengyu Guo, Jian Liu   +4 more
wiley   +1 more source

A novel mechanism for dissimilatory nitrate reduction to ammonium in Acididesulfobacillus acetoxydans

mSystems
The biological route of nitrate reduction has important implications for the bioavailability of nitrogen within ecosystems. Nitrate reduction via nitrite, either to ammonium (ammonification) or to nitrous oxide or dinitrogen (denitrification), determines
Reinier A. Egas, Julia M. Kurth, Sjef Boeren, Diana Z. Sousa, Cornelia U. Welte, Irene Sánchez-Andrea   +5 more
doaj   +1 more source

The nitric oxide response in plant-associated endosymbiotic bacteria [PDF]

, 2011
Nitric oxide (NO) is a gaseous signalling molecule which becomes very toxic due to its ability to react with multiple cellular targets in biological systems. Bacterial cells protect against NO through the expression of enzymes that detoxify this molecule
Andrew J. Gates, Baudouin, Bedmar, Besson-Bard, Bobik, Bueno, Bueno, Cristina Sánchez, Cruz-Ramos, Cueto, David J. Richardson, de Bruijn, del Giudice, Delgado, Elvers, Eulogio J. Bedmar, Frey, Gardner, Gardner, Gilles-Gonzalez, Girard, González, Gómez-Hernández, Hauser, Horchani, Hughes, Juan J. Cabrera, Justino, Kaneko, María J. Delgado, Meakin, Meakin, Meilhoc, Meilhoc, Mesa, Mesa, Mesa, Mills, Moreau, Oldroyd, Pessi, Pii, Pittman, Poole, Pullan, Shimoda, Socorro Mesa, Spiro, Spiro, Sánchez, Sánchez, Sánchez, Tominaga, Torres, Tucker, Tucker, Tucker, van Wonderen   +57 more
core   +1 more source

Nitrate Reductase Regulates Expression of Nitrite Uptake and Nitrite Reductase Activities in Chlamydomonas reinhardtii [PDF]

Plant Physiology, 1992
In Chlamydomonas reinhardtii mutants defective at the structural locus for nitrate reductase (nit-1) or at loci for biosynthesis of the molybdopterin cofactor (nit-3, nit-4, or nit-5 and nit-6), both nitrite uptake and nitrite reductase activities were repressed in ammonium-grown cells and expressed at high amounts in nitrogen-free media or in media ...
A, Galván, J, Cárdenas, E, Fernández
openaire   +2 more sources

Uncovering Cystic Fibrosis Carrier: Insights From a Heterozygous CFTR‐F508del Rabbit Model

International Forum of Allergy &Rhinology, EarlyView.
ABSTRACT Background Chronic rhinosinusitis (CRS) is a heterogeneous inflammatory disorder frequently associated with impaired mucociliary clearance and bacterial infection. Individuals carrying a single cystic fibrosis transmembrane conductance regulator (CFTR) mutation exhibit partial CFTR dysfunction and are increasingly recognized as being at risk ...
Do‐Yeon Cho, Alexis E. McFeely, Daniel Skinner, Shaoyan Zhang, Justin Hedvat, Weslee Ping‐ay, Daniel M. Beswick, Justin H. Turner, Bradford A. Woodworth, Jie Xu   +9 more
wiley   +1 more source

Comparative modelling and molecular docking of nitrate reductase from Bacillus weihenstephanensis (DS45)

Journal of Taibah University for Science, 2016
Nitrate reductase catalyses the oxidation of NAD(P)H and the reduction of nitrate to nitrite. NR serves as a central point for the integration of metabolic pathways by governing the flux of reduced nitrogen through several regulatory mechanisms in plants,
R. Seenivasagan, R. Kasimani, S. Rajakumar, R. Kalidoss, P.M. Ayyasamy   +4 more
doaj   +1 more source

CydDC-mediated reductant export in Escherichia coli controls the transcriptional wiring of energy metabolism and combats nitrosative stress [PDF]

, 2016
The glutathione/cysteine exporter CydDC maintains redox balance in Escherichia coli. A cydD mutant strain was used to probe the influence of CydDC upon reduced thiol export, gene expression, metabolic perturbations, intracellular pH homeostasis, and ...
Cook, Gregory M, Holyoake, Louise V, Howard, Mark J., Hunt, Stuart, Poole, Robert K, Rowe, Michelle L., Sanguinetti, Guido, Shepherd, Mark   +7 more
core   +3 more sources

Characterization of a Nitrite Reductase Involved in Nitrifier Denitrification*

Journal of Biological Chemistry, 2013
Background: Copper nitrite reductases convert nitrite to nitric oxide in microorganisms. Results: The copper nitrite reductase from an ammonia oxidizing bacterium is unusually oxygen tolerant and has several unique structural features.
T. Lawton, Kimberly Bowen, L. Sayavedra-Soto, D. Arp, A. Rosenzweig   +4 more
semanticscholar   +1 more source

Immunoinformatics‐Based Design of a Multi‐Epitope Vaccine Targeting a Conserved Copper–Associated Protein in Neisseria gonorrhoeae

Biotechnology and Applied Biochemistry, EarlyView.
ABSTRACT Neisseria gonorrhoeae poses an urgent public health challenge due to rapidly increasing antimicrobial resistance and the absence of an effective vaccine. Targeting conserved bacterial pathways involved in essential physiological processes may provide new opportunities for vaccine antigen discovery.
Sinethemba H. Yakobi, Uchechukwu U. Nwodo   +1 more
wiley   +1 more source

Toxicological Evaluation of the Undesirable Components in Processed Infant Foods Using Artificial Intelligence

Future Postharvest and Food, EarlyView.
The detection of toxins in baby food using artificial intelligence. ABSTRACT Infant foods and baby formulas are becoming increasingly popular across the globe owing to their ease of consumption and nutritional value specific to infants. Impurities may find their way into the food chain at any point from the acquisition of raw materials to final ...
Poornima Singh, Anurag Singh, Ashutosh Upadhyay, Navneet Kumar   +3 more
wiley   +1 more source