Results 41 to 50 of about 347,780 (327)

Resolution of Key Roles for the Distal Pocket Histidine in Cytochrome c Nitrite Reductases [PDF]

, 2015
Cytochrome c nitrite reductases perform a key step in the biogeochemical N-cycle by catalyzing the six-electron reduction of nitrite to ammonium. These multi-heme cytochromes contain a number of His/His ligated c-hemes for electron transfer and a ...
Burlat, Benedicte, Butt, Julea, Cheesman, Myles, Clarke, Tom, Kern, Melanie, Lockwood, Colin, Richardson, David, Simon, Jorg   +7 more
core   +5 more sources

Distribution of Denitrification among Haloarchaea: A Comprehensive Study

Microorganisms, 2021
Microorganisms from the Halobacteria class, also known as haloarchaea, inhabit a wide range of ecosystems of which the main characteristic is the presence of high salt concentration.
Jose María Miralles-Robledillo, Eric Bernabeu, Micaela Giani, Elena Martínez-Serna, Rosa María Martínez-Espinosa, Carmen Pire   +5 more
doaj   +1 more source

An integrated biochemical system for nitrate assimilation and nitric oxide detoxification in Bradyrhizobium japonicum [PDF]

, 2016
Rhizobia are recognized to establish N(2)-fixing symbiotic interactions with legume plants. Bradyrhizobium japonicum, the symbiont of soybeans, can denitrify and grow under free-living conditions with nitrate (NO(3)(−)) or nitrite (NO(2)(−)) as sole ...
Alderton, Ana Salas, Andrew J. Gates, Angelo, Bates, Bedmar, Bedmar, Bergersen, Cabrera, Crutzen, David J. Richardson, Delgado, Delgado, Egelhoff, Eulogio J. Bedmar, Franck, Fukuda, Gardner, Gates, Gilberthorpe, Goddard, Hauser, Hernández-Urzúa, Horchani, Inaba, Juan J. Cabrera, Kaneko, Kartal, Kato, Kim, Lin, Luque-Almagro, Luque-Almagro, Maia, Maia, María J. Delgado, María J. Torres, Meakin, Meakin, Mesa, Miller, Mills, Moreno-Vivián, Moreno-Vivián, Nicholas, Pino, Pittman, Poole, Pullan, Ravishankara, Regensburger, Rinaldo, Robles, Rowley, Sambrook, Schinko, Simon, Spiro, Spiro, Sánchez, Sánchez, Sánchez, Tinajero-Trejo, Torres, Torres, Vargas, Velasco, Vine, Vine, Zumft   +69 more
core   +1 more source

Modifying the Sterics In the Second Coordination Sphere Of Designed Peptides Leads to Enhancement of Nitrite Reductase Activity

Angewandte Chemie, 2018
Protein design is a useful strategy to interrogate the protein structure-function relationship. We demonstrate using a highly modular 3-stranded Coiled Coil (TRI-peptide system) that a functional type 2 copper center exhibiting copper nitrite reductase ...
K. Koebke, Fangting Yu, Elvin V. Salerno, Casey Van Stappen, Alison G. Tebo, J. Penner‐Hahn, V. Pecoraro   +6 more
semanticscholar   +1 more source

Nitrite Reductase Activity of Cytochrome c [PDF]

Journal of Biological Chemistry, 2008
Small increases in physiological nitrite concentrations have now been shown to mediate a number of biological responses, including hypoxic vasodilation, cytoprotection after ischemia/reperfusion, and regulation of gene and protein expression. Thus, while nitrite was until recently believed to be biologically inert, it is now recognized as a potentially
Swati, Basu, Natalia A, Azarova, Michael D, Font, S Bruce, King, Neil, Hogg, Mark T, Gladwin, Sruti, Shiva, Daniel B, Kim-Shapiro   +7 more
openaire   +2 more sources

Influences of Growth Stage and Ensiling Time on Fermentation Characteristics, Nitrite, and Bacterial Communities during Ensiling of Alfalfa

Plants, 2023
This study examined the impacts of growth stage and ensiling duration on the fermentation characteristics, nitrite content, and bacterial communities during the ensiling of alfalfa.
Jiangbo An, Lin Sun, Mingjian Liu, Rui Dai, Gentu Ge, Zhijun Wang, Yushan Jia   +6 more
doaj   +1 more source

Anti-oxidant effect of nitrite in the pancreatic islets of type 2 diabetic male rats [PDF]

Iranian Journal of Basic Medical Sciences, 2023
Objective(s): Nitrite, a nitric oxide (NO) donor, increases insulin secretion from pancreatic islets and has positive metabolic effects in type 2 diabetes (T2D). Here, we test the hypothesis of whether nitrite-induced insulin secretion is due to blunting
Asghar Ghasemi, Sevda Gheibi, Khosrow Kashfi, Sajad Jeddi   +3 more
doaj   +1 more source

Niche differentiation in nitrogen metabolism among methanotrophs within an operational taxonomic unit [PDF]

, 2014
Background: The currently accepted thesis on nitrogenous fertilizer additions on methane oxidation activity assumes niche partitioning among methanotrophic species, with activity responses to changes in nitrogen content being dependent on the in situ ...
Boon, Nico, De Vos, Paul, Heylen, Kim, Hoefman, Sven, van der Ha, David, Vandamme, Peter   +5 more
core   +3 more sources

Presence of Cu-Type (NirK) and cd1-Type (NirS) Nitrite Reductase Genes in the Denitrifying Bacterium Bradyrhizobium nitroreducens sp. nov.

Microbes and Environments, 2018
Nitrite reductase is a key enzyme for denitrification. There are two types of nitrite reductases: copper-containing NirK and cytochrome cd1-containing NirS.
Jeonghwan Jang, N. Ashida, Ayaaki Kai, K. Isobe, T. Nishizawa, S. Otsuka, A. Yokota, K. Senoo, S. Ishii   +8 more
semanticscholar   +1 more source

The key role of nitric oxide in hypoxia: hypoxic vasodilation and energy supply-demand matching [PDF]

, 2013
Significance: a mismatch between energy supply and demand induces tissue hypoxia with the potential to cause cell death and organ failure. Whenever arterial oxygen concentration is reduced, increases in blood flow - 'hypoxic vasodilation' - occur in an ...
Alex Dyson, Audibert G, Berne RM, Blitzer ML, Boutilier RG, Brown IP, Devlin C, Furukawa K, Hall JE, Heyes MP, Jekabsone A, Lehninger A, Leone AM, Louis CA, Martin Feelisch, Mervyn Singer, Michele Umbrello, Modin A, Munk VC, Pohl U, Rengasamy A, Rengasamy A, Vallance P, Whorton AR   +23 more
core   +1 more source