Results 21 to 30 of about 13,465 (259)

Putting xanthine oxidoreductase and aldehyde oxidase on the NO metabolism map: Nitrite reduction by molybdoenzymes

Redox Biology, 2018
Nitric oxide radical (NO) is a signaling molecule involved in several physiological and pathological processes and a new nitrate-nitrite-NO pathway has emerged as a physiological alternative to the ''classic'' pathway of NO formation from L-arginine ...
Luisa B. Maia, José J.G. Moura
doaj   +1 more source

Nitrite Biosensing via Selective Enzymes—A Long but Promising Route

Sensors, 2010
The last decades have witnessed a steady increase of the social and political awareness for the need of monitoring and controlling environmental and industrial processes.
M. Gabriela Almeida, Alexandra Serra, Celia M. Silveira, Jose J.G. Moura   +3 more
doaj   +1 more source

Engineering neuroglobin nitrite reductase activity based on myoglobin models

Biochemistry and Biophysics Reports, 2023
Neuroglobin is a hemoprotein expressed in several nervous system cell lineages with yet unknown physiological functions. Neuroglobin presents a very similar structure to that of the related globins hemoglobin and myoglobin, but shows an hexacoordinate ...
Mark D. Williams, Venkata Ragireddy, Matthew R. Dent, Jesús Tejero   +3 more
doaj   +1 more source

Bacterial nitrate assimilation: gene distribution and regulation [PDF]

, 2011
In the context of the global nitrogen cycle, the importance of inorganic nitrate for the nutrition and growth of marine and freshwater autotrophic phytoplankton has long been recognized.
Andrew J. Gates, Assumpção, Caballero, Cabello, Chai, Chen, Conrado Moreno-Vivián, David J. Richardson, Flores, Forchhammer, Forchhammer, Gates, Gutierrez, Ishida, Kayumov, Koropatkin, Leigh, Li, Lin, Lledó, Llácer, M. Dolores Roldán, Moreno-Vivián, Nakano, Ogawa, Ohashi, Pawlowski, Paz-Yepes, Pino, Puerta-Fernández, Ramos, Richardson, Sanders, Shao, Shu, Shu, Stuart J. Ferguson, Swanson, Szeto, Toukdarian, Víctor M. Luque-Almagro, Weiss, Weiss, Wray, Wu   +44 more
core   +1 more source

Crosstalk between nitrite, myoglobin and reactive oxygen species to regulate vasodilation under hypoxia. [PDF]

PLoS ONE, 2014
The systemic response to decreasing oxygen levels is hypoxic vasodilation. While this mechanism has been known for more than a century, the underlying cellular events have remained incompletely understood.
Matthias Totzeck, Ulrike B Hendgen-Cotta, Malte Kelm, Tienush Rassaf   +3 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

Siroheme synthase orients substrates for dehydrogenase and chelatase activities in a common active site

Nature Communications, 2020
Siroheme is an essential bacterial iron tetrapyrrole used by siroheme-dependent sulfite and nitrite reductases. Here the authors shed light on the catalytic mechanisms of siroheme synthase through the structures of the bifunctional dehydrogenase ...
Joseph M. Pennington, Michael Kemp, Lauren McGarry, Yu Chen, M. Elizabeth Stroupe   +4 more
doaj   +1 more source

Bringing Nitric Oxide to the Molybdenum World—A Personal Perspective

Molecules, 2023
Molybdenum-containing enzymes of the xanthine oxidase (XO) family are well known to catalyse oxygen atom transfer reactions, with the great majority of the characterised enzymes catalysing the insertion of an oxygen atom into the substrate. Although some
Luisa B. Maia
doaj   +1 more source

Migraines Are Correlated with Higher Levels of Nitrate-, Nitrite-, and Nitric Oxide-Reducing Oral Microbes in the American Gut Project Cohort. [PDF]

, 2016
Nitrates, such as cardiac therapeutics and food additives, are common headache triggers, with nitric oxide playing an important role. Facultative anaerobic bacteria in the oral cavity may contribute migraine-triggering levels of nitric oxide through the ...
Antonio Gonzalez, Embriette Hyde, Erik Viirre, Jack A. Gilbert, Jonathan Eisen, Naseer Sangwan, Rob Knight   +6 more
core   +2 more sources

Structure and evolution of chlorate reduction composite transposons. [PDF]

, 2013
UnlabelledThe genes for chlorate reduction in six bacterial strains were analyzed in order to gain insight into the metabolism. A newly isolated chlorate-reducing bacterium (Shewanella algae ACDC) and three previously isolated strains (Ideonella ...
Clark, Iain C, Coates, John D, Engelbrektson, Anna, Melnyk, Ryan A   +3 more
core   +2 more sources