Results 61 to 70 of about 503,441 (367)

Biochemical properties of Paracoccus denitrificans FnrP:Reactions with molecular oxygen and nitric oxide [PDF]

, 2016
In Paracoccus denitrificans, three CRP/FNR family regulatory proteins, NarR, NnrR and FnrP, control the switch between aerobic and anaerobic (denitrification) respiration.
A Volbeda, A Yan, AJ Jervis, Andrew J. Thomson, AS Fleischhacker, B Weiss, B Zhang, CP Tseng, CT Przysiecki, CV Popescu, D Ralt, DJ Richardson, DJ Shaw, DM Bates, F Sievers, G Sawers, H Beinert, H Reents, J Crack, J Edwards, J Green, Jason C. Crack, JC Crack, JC Crack, JC Crack, JC Crack, JC Crack, JC Crack, JC Crack, JC Crack, JC Crack, JC Drapier, L Bergaust, LJ Moore, LR Bakken, M Matsui, Matthew I. Hutchings, MC Broillet, MF Otten, MI Hutchings, MI Hutchings, MM Bradford, N Filenko, Nick E. Le Brun, NJ Watmough, P Bouchal, PJ Kiley, R Bruckdorfer, R Veldman, RJ Spanning Van, RJ Spanning van, SA Ibrahim, SB Melville, ST Pullan, VR Sutton, WG Zumft, YM Kwon, YY Lee   +57 more
core   +1 more source

Real‐time assay of ribonucleotide reductase activity with a fluorescent RNA aptamer

FEBS Letters, EarlyView.
Ribonucleotide reductases (RNR) synthesize DNA building blocks de novo, making them crucial in DNA replication and drug targeting. FLARE introduces the first single‐tube real‐time coupled RNR assay, which enables isothermal tracking of RNR activity at nanomolar enzyme levels and allows the reconstruction of allosteric regulatory patterns and rapid ...
Jacopo De Capitani, Noemi E. Nwosu, Viktoria Gocke, Müge Kasanmascheff, Hannes Mutschler   +4 more
wiley   +1 more source

Nitrogen metabolism in a grapevine in vitro system

OENO One, 2002
Ammonium, nitrate, nitrite, protein and individual and total amino acid contents were determined in grapevine (cv Sauvignon) cultured in vitro. The enzyme activities of nitrate and nitrite reductases, glutamine synthetase, glutamate synthetase and ...
Nuria Llorens, Lluís Arola, Cinta Bladé, Albert Mas   +3 more
doaj   +1 more source

Nitro-fatty acid formation and metabolism [PDF]

, 2018
Nitro-fatty acids (NO 2 -FA) are pleiotropic modulators of redox signaling pathways. Their effects on inflammatory signaling have been studied in great detail in cell, animal and clinical models primarily using exogenously administered nitro-oleic acid ...
Bonacci, Gustavo Roberto, Buchan, Gregory J., Fazzari, Marco, Gelhaus Wendell, Stacy, Salvatore, Sonia Rosana   +4 more
core   +1 more source

Cell wall target fragment discovery using a low‐cost, minimal fragment library

FEBS Letters, EarlyView.
LoCoFrag100 is a fragment library made up of 100 different compounds. Similarity between the fragments is minimized and 10 different fragments are mixed into a single cocktail, which is soaked to protein crystals. These crystals are analysed by X‐ray crystallography, revealing the binding modes of the bound fragment ligands.
Kaizhou Yan, Mathew Stanley, Olawale Raimi, Andrew T. Ferenbach, Helge C Dorfmueller, Daan M. F. van Aalten   +5 more
wiley   +1 more source

Haloferax mediterranei, an Archaeal Model for Denitrification in Saline Systems, Characterized Through Integrated Physiological and Transcriptional Analyses

Frontiers in Microbiology, 2020
Haloferax mediterranei (R4) belongs to the group of halophilic archaea, one of the predominant microbial populations in hypersaline environments. In these ecosystems, the low availability of oxygen pushes the microbial inhabitants toward anaerobic ...
Javier Torregrosa-Crespo, Carmen Pire, Linda Bergaust, Rosa María Martínez-Espinosa   +3 more
doaj   +1 more source

A standardised method for measuring in situ denitrification in shallow aquifers: numerical validation and measurements in riparian wetlands [PDF]

, 2003
A tracer test to examine in situ denitrification in shallow groundwater by a piezometer with a packer system used bromide as a tracer of dilution and acetylene (10%) to block the denitrification process at the nitrous oxide stage.
C. Bouey, I. Antiguedad, J. M. Sánchez-Pérez, J. M. Sánchez-Pérez, P. Vervier, S. Sauvage, S. Teissier   +6 more
core   +3 more sources

Peroxidasin enables melanoma immune escape by inhibiting natural killer cell cytotoxicity

Molecular Oncology, EarlyView.
Peroxidasin (PXDN) is secreted by melanoma cells and binds the NK cell receptor NKG2D, thereby suppressing NK cell activation and cytotoxicity. PXDN depletion restores NKG2D signaling and enables effective NK cell–mediated melanoma killing. These findings identify PXDN as a previously unrecognized immune evasion factor and a potential target to improve
Hsu‐Min Sung, David Bickel, Lena C. M. Krause, Daria Ezeriņa, Christian Ickes, Julian Wojtachnia, Christine S. Gibhardt, Magdalena Shumanska, Khadija Wahni, Andrea Paluschkiwitz, Julia Malo Pueyo, Ekaterina Baranova, Wim Vranken, Hedwig Stanisz, Ioana Stejerean‐Todoran, Michael P. Schön, Joris Messens, Ivan Bogeski   +17 more
wiley   +1 more source

In Silico Analysis of the Enzymes Involved in Haloarchaeal Denitrification

Biomolecules, 2021
During the last century, anthropogenic activities such as fertilization have led to an increase in pollution in many ecosystems by nitrogen compounds. Consequently, researchers aim to reduce nitrogen pollutants following different strategies.
Eric Bernabeu, Jose María Miralles-Robledillo, Micaela Giani, Elena Valdés, Rosa María Martínez-Espinosa, Carmen Pire   +5 more
doaj   +1 more source

Nitrous oxide production in soil isolates of nitrate-ammonifying bacteria [PDF]

, 2012
Here we provide the first demonstration of the potential for N2O production by soil-isolated nitrate-ammonifying bacteria under different C and N availabilities, building on characterizations informed from model strains.
Bamford, Bleakley, Cole, Costa, Cruz Ramos, Fazzolari, Gilberthorpe, Hussain, Iobbi-Nivol, Jepson, Jormakka, Kelso, Lane, Macdonald, Mohan, Nakano, Pett-Ridge, Pope, Potter, Sambrook, Schmidt, Silver, Silver, Simon, Smith, Smith, Smith, Stevens, Wan, Yin   +29 more
core   +2 more sources