Results 51 to 60 of about 162,062 (330)

The synthesis of 2′-methylseleno adenosine and guanosine 5′-triphosphates

Bioorganic & Medicinal Chemistry, 2012
Modified nucleoside triphosphates (NTPs) represent powerful building blocks to generate nucleic acids with novel properties by enzymatic synthesis. We have recently demonstrated the access to 2'-SeCH(3)-uridine and 2'-SeCH(3)-cytidine derivatized RNAs for applications in RNA crystallography, using the corresponding nucleoside triphosphates and distinct
Santner, Tobias, Micura, Ronald, Siegmund, Vanessa, Marx, Andreas   +3 more
openaire   +4 more sources

Glucocorticoids and the regulation of phosphoenolpyruvate carboxykinase (guanosine triphosphate) in the rat [PDF]

Biochemical Journal, 1975
The effect glucocorticoids on the synthesis and degradation of phosphoenolpyruvate carboxykinase (GTP)(EC4.1.1.32) in rat liver and kidney in vivo was studied immunochemically. The glucocorticoid analogue triamcinolone (9α-fluoro-11β, 21-dihydroxy-16α,17α-isopropylidenedioxypregna-1,4-diene-3,20-dione) increased the synthesis rate of the kidney enzyme ...
Lea Reshef, O Meyuhas, J M Gunn, Richard W. Hanson, F.J. Ballard   +4 more
openaire   +3 more sources

Sports Participation Promotes Beneficial Adaptations in the Erythrocyte Guanylate Nucleotide Pool in Male Athletes Aged 20–90 Years

Clinical Interventions in Aging, 2023
Barbara Pospieszna,1 Krzysztof Kusy,1 Ewa Maria Slominska,2 Monika Ciekot-Sołtysiak,1 Jacek Zieliński1 1Department of Athletics, Strength and Conditioning, Poznan University of Physical Education, Poznan, Poland; 2Department of Biochemistry,
Pospieszna B, Kusy K, Slominska EM, Ciekot-Sołtysiak M, Zieliński J   +4 more
doaj  

Role of Increased Guanosine Triphosphate Cyclohydrolase-1 Expression and Tetrahydrobiopterin Levels upon T Cell Activation

Journal of Biological Chemistry, 2011
Tetrahydrobiopterin (BH4) is an essential co-factor for the nitric-oxide (NO) synthases, and in its absence these enzymes produce superoxide (O2̇̄) rather than NO.
Wei Chen, Li Li, Torben Brod, O. Saeed, Salim R. Thabet, T. Jansen, S. Dikalov, C. Weyand, J. Goronzy, D. Harrison   +9 more
semanticscholar   +1 more source

Natriuretic peptide receptors regulate cytoprotective effects in a human ex vivo 3D/bioreactor model [PDF]

, 2013
© 2013 Peake et al.; licensee BioMed Central Ltd. This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and ...
Achan, P, Bader, DL, Chowdhury, TT, Hobbs, AJ, Moyes, AJ, Peake, N, Ramachandran, M, Salter, DM, Su, N   +8 more
core   +2 more sources

Roles of Rap1 signaling in tumor cell migration and invasion

Cancer Biology & Medicine, 2017
Ras-associated protein-1 (Rap1), a small GTPase in the Ras-related protein family, is an important regulator of basic cellular functions (e.g., formation and control of cell adhesions and junctions), cellular migration, and polarization.
Yi-Lei Zhang, Ruo-Chen Wang, Ken Cheng, Brian Z. Ring, Li Su   +4 more
doaj   +1 more source

A metazoan/plant-like capping enzyme and cap modified nucleotides in the unicellular eukaryote Trichomonas vaginalis. [PDF]

PLoS Pathogens, 2010
The cap structure of eukaryotic messenger RNAs is initially elaborated through three enzymatic reactions: hydrolysis of the 5'-triphosphate, transfer of guanosine through a 5'-5' triphosphate linkage and N7-methylation of the guanine cap.
Augusto Simoes-Barbosa, Robert P Hirt, Patricia J Johnson   +2 more
doaj   +1 more source

The Guanylate Cyclase C-cGMP Signaling Axis Opposes Intestinal Epithelial Injury and Neoplasia. [PDF]

, 2018
Guanylate cyclase C (GUCY2C) is a transmembrane receptor expressed on the luminal aspect of the intestinal epithelium. Its ligands include bacterial heat-stable enterotoxins responsible for traveler\u27s diarrhea, the endogenous peptide hormones ...
Rappaport, Jeffrey A., Waldman, Scott A.
core   +2 more sources

GTP-Dependent Regulation of CTP Synthase: Evolving Insights into Allosteric Activation and NH₃ Translocation

Biomolecules, 2022
Cytidine-5′-triphosphate (CTP) synthase (CTPS) is the class I glutamine-dependent amidotransferase (GAT) that catalyzes the last step in the de novo biosynthesis of CTP.
Stephen L. Bearne, Chen-Jun Guo, Ji-Long Liu   +2 more
doaj   +1 more source

Lethal Mutagenesis of Poliovirus Mediated by a Mutagenic Pyrimidine Analogue [PDF]

, 2007
Lethal mutagenesis is the mechanism of action of ribavirin against poliovirus (PV) and numerous other RNA viruses. However, there is still considerable debate regarding the mechanism of action of ribavirin against a variety of RNA viruses.
Brown, Daniel M., Cameron, Craig E., Edathil, Jocelyn P., Franco, David, Graci, Jason D., Harki, Daniel A., Korneeva, Victoria S., Loakes, David, Paul, Aniko V., Peterson, Blake R., Smidansky, Eric D., Too, Kathleen   +11 more
core   +4 more sources