Results 41 to 50 of about 3,659,486 (328)

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

Cryo-EM structures of intermediates suggest an alternative catalytic reaction cycle for cytochrome c oxidase

Nature Communications, 2021
Cytochrome c oxidases are among the most important and fundamental enzymes of life. Integrated into membranes they use four electrons from cytochrome c molecules to reduce molecular oxygen (dioxygen) to water. Their catalytic cycle has been considered to
F. Kolbe, S. Safarian, Ż. Piórek, S. Welsch, H. Müller, H. Michel   +5 more
semanticscholar   +1 more source

Comparison of the Kinetic Parameters of Alternative Oxidases From Trypanosoma brucei and Arabidopsis thaliana—A Tale of Two Cavities

Frontiers in Plant Science, 2021
The alternative oxidase (AOX) is widespread in plants, fungi, and some protozoa. While the general structure of the AOX remains consistent, its overall activity, sources of kinetic activation and their sensitivity to inhibitors varies between species. In
Fei Xu, Alice C. Copsey, Luke Young, Mario R. O. Barsottini, Mary S. Albury, Anthony L. Moore   +5 more
doaj   +1 more source

First documented record of a living solemyid bivalve in a pockmark of the Nile Deep-sea Fan (eastern Mediterranean Sea) [PDF]

, 2011
A living specimen of a solemyid bivalve was collected at bathyal depths near a pockmark in the Nile Deep-sea Fan (eastern Mediterranean) and is here presented.
Clara F. Rodrigues, Folmer, Fujiwara, Hoeh, Reid, Sylvie M. Gaudron, Sébastien Duperron, Taviani   +7 more
core   +2 more sources

Alternative oxidase in higher plants.

Acta Biochimica Polonica, 2003
Plant respiratory chain branches at the level of ubiquinone from where the electrons flow through the cytochrome pathway or to alternative oxidase. Transfer of electrons from ubiquinone to oxygen by alternative oxidase has a non-protonmotive character and, by bypassing two sites of H+ pumping in complexes III and IV, lowers the energy efficiency of ...
Izabela M, Juszczuk, Anna M, Rychter
openaire   +3 more sources

Proton translocation in proteins [PDF]

, 1989
The active transport of protons across the low dielectric barrier imposed by biological membranes is accomplished by a plethora of proteins that span the ca. 40 Å of the phospholipid bilayer.
Chan, Sunney I., Copeland, Robert A.
core   +1 more source

Structure of the trypanosome cyanide-insensitive alternative oxidase [PDF]

Proceedings of the National Academy of Sciences, 2013
In addition to haem copper oxidases, all higher plants, some algae, yeasts, molds, metazoans, and pathogenic microorganisms such as Trypanosoma brucei contain an additional terminal oxidase, the cyanide-insensitive alternative oxidase (AOX).
Tomoo, Shiba, Yasutoshi, Kido, Kimitoshi, Sakamoto, Daniel Ken, Inaoka, Chiaki, Tsuge, Ryoko, Tatsumi, Gen, Takahashi, Emmanuel Oluwadare, Balogun, Takeshi, Nara, Takashi, Aoki, Teruki, Honma, Akiko, Tanaka, Masayuki, Inoue, Shigeru, Matsuoka, Hiroyuki, Saimoto, Anthony L, Moore, Shigeharu, Harada, Kiyoshi, Kita   +17 more
openaire   +2 more sources

Copper Metabolism in Naegleria gruberi and Its Deadly Relative Naegleria fowleri

Frontiers in Cell and Developmental Biology, 2022
Although copper is an essential nutrient crucial for many biological processes, an excessive concentration can be toxic and lead to cell death. The metabolism of this two-faced metal must be strictly regulated at the cell level.
Kateřina Ženíšková, Maria Grechnikova, Robert Sutak   +2 more
doaj   +1 more source

Prevalence of QoI resistance and mtDNA diversity in the Irish Zymoseptoria tritici population [PDF]

, 2019
peer-reviewedThe emergence and spread of Quinone outside Inhibitor (QoI) fungicide resistance in the Irish Zymoseptoria tritici population in the early 2000s had immediate impacts on the efficacy of the entire group of fungicides for the control of ...
Bucar, D.E., Hutton, F., Kildea, Steven, Phelan, S., Rosa, S. de la, Welch, T.E.   +5 more
core   +1 more source

Mitochondrial alternative oxidase‐dependent autophagy involved in ethylene‐mediated drought tolerance in Solanum lycopersicum

Plant Biotechnology Journal, 2018
Summary Mitochondrial alternative oxidase (AOX) is involved in a large number of plant physiological processes, such as growth, development and stress responses; however, the exact role of AOX in response to drought remains unclear.
T. Zhu, Lijuan Zou, Yan Li, Xiuhong Yao, Fei Xu, Xingguang Deng, Dawei Zhang, Honghui Lin   +7 more
semanticscholar   +1 more source