Results 71 to 80 of about 686,474 (304)

Changes of energy balance of rat liver and pancreas upon gastric hypoacidity and search of approaches for its recovery

Vìsnik: Kiïvsʹkij Nacìonalʹnij Unìversitet Imenì Tarasa Ševčenka. Bìologìâ, 2016
It was established that the energy balance was disturbed in liver and pancreas of rats with long-term gastric hypochlorhydria, suggesting a decreased of ATP content while ATP and AMP levels were increasing.
K. Dvorshchenko
doaj   +1 more source

Molecular dissection of the domain architecture and catalytic activities of human PrimPol [PDF]

, 2014
PrimPol is a primase–polymerase involved in nuclear and mitochondrial DNA replication in eukaryotic cells. Although PrimPol is predicted to possess an archaeo-eukaryotic primase and a UL52-like zinc finger domain, the role of these domains has not been ...
Aidan J. Doherty, Aravind, Benjamin A. Keen, Bianchi, Biertümpfel, Biswas, Bocquier, Boudsocq, Brautigam, Chen, Chen, Connolly, Corn, Della, Duncan, Engelke, Fogg, Frick, Garcia-Gomez, Graziewicz, Griep, Hays, Iyer, Johnson, Julie Bianchi, Kim, Lao-Sirieix, Lao-Sirieix, Laura J. Bailey, Lehmann, Lipps, Liu, Maga, Masutani, Mendelman, Ohashi, Pelletier, Pinz, Pitcher, Rudd, Shannon, Stanislaw K. Jozwiakowski, Tabor, van Loon, Wan, Washington   +45 more
core   +2 more sources

Allosteric regulation accompanied by oligomeric state changes of Trypanosoma brucei GMP reductase through cystathionine-β-synthase domain

Nature Communications, 2020
Trypanosoma brucei guanosine 5′-monophosphate reductase (TbGMPR) catalyses the conversion of GMP to inosine 5′-monophosphate and contains a cystathionine-β-synthase (CBS) domain. Here the authors combine X-ray crystallography and kinetic measurements and
Akira Imamura, Tetsuya Okada, Hikaru Mase, Takuya Otani, Tomoka Kobayashi, Manatsu Tamura, Bruno Kilunga Kubata, Katsuaki Inoue, Robert P. Rambo, Susumu Uchiyama, Kentaro Ishii, Shigenori Nishimura, Takashi Inui   +12 more
doaj   +1 more source

Multiple Mechanisms Regulate Eukaryotic Cytochrome C Oxidase

Cells, 2021
Cytochrome c oxidase (COX), the rate-limiting enzyme of mitochondrial respiration, is regulated by various mechanisms. Its regulation by ATP (adenosine triphosphate) appears of particular importance, since it evolved early during evolution and is still ...
Rabia Ramzan, Bernhard Kadenbach, Sebastian Vogt   +2 more
doaj   +1 more source

Search for Interstellar Adenine [PDF]

Astrophys Space Sci, 2015, 357, 90, 2015
It is long debated if pre-biotic molecules are indeed present in the interstellar medium. Despite substantial works pointing to their existence, pre-biotic molecules are yet to be discovered with a complete confidence. In this paper, our main aim is to study the chemical evolution of interstellar adenine under various circumstances.
arxiv   +1 more source

Inhibition of Sympathetic Neurotransmission in Canine Blood Vessels by Adenosine and Adenine Nucleotides

Circulation Research, 1977
SUMMARY Adenosine and the adenine nucleotides caused a greater relaxation of strips of canine saphenous vein and tibial artery when they had been contracted by nerve stimulation than by exogenous norepinephrine.
R. Verhaeghe, P. Vanhoutte, J. Shepherd
semanticscholar   +1 more source

Insight into an Oxidative DNA-Cleaving DNAzyme: Multiple Cofactors, the Catalytic Core Map and a Highly Efficient Variant

iScience, 2020
Summary: An oxidative DNA-cleaving DNAzyme (PL) employs a double-cofactor model “X/Cu2+” for catalysis. Herein, we verified that reduced nicotinamide adenine dinucleotide (NADH), flavin mononucleotide, cysteine, dithiothreitol, catechol, resorcinol ...
Wenqian Yu, Shijin Wang, Dongling Cao, Hongyue Rui, Chengcheng Liu, Yongjie Sheng, Yanhong Sun, Jin Zhang, Jiacui Xu, Dazhi Jiang   +9 more
doaj  

Attenuation of ischemic liver injury by monoclonal anti-endothelin antibody, awETN40 [PDF]

, 1997
Background: Enhanced production of endothelin-1 (ET1), vasoconstrictive 21 amino acids produced by endothelial cells during ischemia and after reperfusion of the liver, is known to cause sinusoidal constriction and microcirculatory disturbances, which ...
Ishizaki, N, Jin, MB, Lee, R, Shimamura, T, Starzl, TE, Subbotin, V, Todo, S, Totsuka, E, Urakami, A, Zhang, S, Zhu, Y   +10 more
core   +1 more source

Functionalized Carbon Nanotube Electrodes for Controlled DNA Sequencing [PDF]

arXiv, 2020
In the last decade, solid state nanopores nanogaps have attracted significant interest in the rapid detection of DNA nucleotides. However, reducing the noise through the controlled translocating of the DNA nucleobases is a central issue for the developing nanogap nanopore based DNA sequencing to achieve single nucleobase resolution.
arxiv  

Molecular dynamics simulation study of the binding of purine bases to the aptamer domain of the guanine sensing riboswitch [PDF]

, 2009
Riboswitches are a novel class of genetic control elements that function through the direct interaction of small metabolite molecules with structured RNA elements.
Stock, Gerhard, Villa, Alessandra, Wöhnert, Jens   +2 more
core   +1 more source