Results 41 to 50 of about 11,566 (244)

Cytochromes c550, c552, c1 in the electron transport network of Paracoccus denitrificans: redundant or subtly different in function? [PDF]

, 2001
Paracoccus denitrificans strains with mutations in the genes encoding the cytochrome c550, c552, or c1 and in combinations of these genes were constructed, and their growth characteristics were determined.
Ludwig, B., Oost, J., van der, Otten, M.F., Reijnders, W.N.M., Spanning, R.J.M., van, Westerhoff, H.V.   +5 more
core   +3 more sources

Metagenomic potential for and diversity of N‐cycle driving microorganisms in the Bothnian Sea sediment

MicrobiologyOpen, 2017
The biological nitrogen cycle is driven by a plethora of reactions transforming nitrogen compounds between various redox states. Here, we investigated the metagenomic potential for nitrogen cycle of the in situ microbial community in an oligotrophic ...
Olivia Rasigraf, Julia Schmitt, Mike S. M. Jetten, Claudia Lüke   +3 more
doaj   +1 more source

Characterization of denitrifying activity by the alphaproteobacterium, Sphingomonas wittichii RW1

Frontiers in Microbiology, 2014
Sphingomonas wittichii RW1 has no reported denitrifying activity yet encodes nitrite and nitric oxide reductases. The aims of this study were to determine conditions under which S.
Lisa Y Stein, Lynnie S Cua
doaj   +1 more source

A functional description of CymA, an electron-transfer hub supporting anaerobic respiratory flexibility in Shewanella [PDF]

, 2012
CymA (tetrahaem cytochrome c) is a member of the NapC/NirT family of quinol dehydrogenases. Essential for the anaerobic respiratory flexibility of shewanellae, CymA transfers electrons from menaquinol to various dedicated systems for the reduction of ...
Butt, Julea N., Bye, Jordan, Cheesman, Myles R., Fredrickson, Jim, Jeuken, Lars J. C., Lowe, Thomas G., Marritt, Sophie J., McMillan, Duncan G. G., Richardson, David J., Shi, Liang, Zachara, John   +10 more
core   +1 more source

The relationship between redox enzyme activity and electrochemical potential—cellular and mechanistic implications from protein film electrochemistry [PDF]

, 2011
In protein film electrochemistry a redox protein of interest is studied as an electroactive film adsorbed on an electrode surface. For redox enzymes this configuration allows quantification of the relationship between catalytic activity and ...
Ackrell, Anderson, Anderson, Andrew G. Mayes, Andrew J. Gates, Angove, Armstrong, Armstrong, Armstrong, Armstrong, Armstrong, Arnoux, Bamford, Bekker, Berks, Blumberger, Blumberger, Buc, Butler, Butler, Chun Yip To, Clarke, Costa, David J. Richardson, Davis, de Vries, Dementin, Dias, Dridge, Eddowes, Ellington, Elliott, Field, Flores, Fourmond, Fourmond, Fourmond, Frangioni, Frew, Gates, Gates, Gemma L. Kemp, Georgellis, Gwyer, Hagedoorn, Hanson, Healy, Heering, Hirst, Hofmann, Hunte, Immoos, Ivanov, James Mann, Jepson, Jepson, Jeuken, Julea N. Butt, Kell, Kemp, Lin, Léger, Léger, Léger, Marritt, Marsili, Moore, Murgida, Niki, Otten, Otten, Page, Pershad, Potter, Ramirez, Richardson, Ridnour, Sears, Sears, Simons, Sophie J. Marritt, Sun, Tenderholt, Tenderholt, Thauer, Tipmanee, Wang, Westerhoff, Yeh, Zuman   +89 more
core   +1 more source

Exercise Training Decreases Nitrite Concentration in the Heart and Locomotory Muscles of Rats Without Changing the Muscle Nitrate Content

Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease
Background Skeletal muscles are postulated to be a potent regulator of systemic nitric oxide homeostasis. In this study, we aimed to evaluate the impact of physical training on the heart and skeletal muscle nitric oxide bioavailability (judged on the ...
Joanna Majerczak, Hanna Drzymala‐Celichowska, Marcin Grandys, Agnieszka Kij, Kamil Kus, Jan Celichowski, Katarzyna Krysciak, Weronika A. Molik, Zbigniew Szkutnik, Jerzy A. Zoladz   +9 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

Regulation of Nitrite Reductase [PDF]

Plant Physiology, 1987
A protein with molecular mass of 67 kilodaltons is immunoprecipitated from in vitro translated products obtained from rabbit reticulocyte lysate primed with polyadenylated RNA from nitrate treated illuminated pea seedlings. This protein resembles the native nitrite reductase because of its competitive elimination when immunoprecipitation of in vitro ...
S C, Gupta, L, Beevers
openaire   +2 more sources

Nanozymes at the Bio‐Nano Interface: From Synthesis, Defect Engineering, Catalytic Behavior in Biological Microenvironments, and Biosafety Implications

Advanced Materials Interfaces, EarlyView.
Nanozymes (NZs) have emerged as versatile artificial enzymes with tunable catalytic properties driven by atomic coordination, defect engineering, and surface chemistry. This review presents a bio–nano interface framework linking synthesis strategies, structural design, and catalytic behavior within complex biological microenvironments.
Karen Guadalupe Quintero‐Garrido, Aída Jimena Velarde‐Salcedo, Alejandro López‐Amador, Noé Arjona, Citlali Uitz Toalá, Carmen Gonzalez, Beatriz Liliana España‐Sánchez   +6 more
wiley   +1 more source

Frequency of Tongue Cleaning Impacts the Human Tongue Microbiome Composition and Enterosalivary Circulation of Nitrate

Frontiers in Cellular and Infection Microbiology, 2019
The oral microbiome has the potential to provide an important symbiotic function in human blood pressure physiology by contributing to the generation of nitric oxide (NO), an essential cardiovascular signaling molecule.
Gena D. Tribble, Nikola Angelov, Robin Weltman, Bing-Yan Wang, Sridhar V. Eswaran, Isabel C. Gay, Kavitha Parthasarathy, Doan-Hieu V. Dao, Katherine N. Richardson, Nadia M. Ismail, Iraida G. Sharina, Embriette R. Hyde, Nadim J. Ajami, Nadim J. Ajami, Joseph F. Petrosino, Joseph F. Petrosino, Nathan S. Bryan   +16 more
doaj   +1 more source