Results 21 to 30 of about 121,582 (318)

Analysis of substrate specificity and kinetics of cyclic nucleotide phosphodiesterases with N'-methylanthraniloyl-substituted purine and pyrimidine 3',5'-cyclic nucleotides by fluorescence spectrometry.

open access: yesPLoS ONE, 2013
As second messengers, the cyclic purine nucleotides adenosine 3',5'-cyclic monophosphate (cAMP) and guanosine 3',5'-cyclic monophosphate (cGMP) play an essential role in intracellular signaling.
Daniel Reinecke   +3 more
doaj   +1 more source

Cyclic nucleotide binding proteins in the Arabidopsis thaliana and Oryza sativa genomes

open access: yesBMC Bioinformatics, 2005
Background Cyclic nucleotides are ubiquitous intracellular messengers. Until recently, the roles of cyclic nucleotides in plant cells have proven difficult to uncover.
Moorhead Greg BG   +2 more
doaj   +1 more source

Role of cyclic AMP and cyclic GMP as modulators of platelet cytosolic calcium

open access: yesJournal of Clinical and Preventive Cardiology, 2016
Studies from our laboratory at the University of Minnesota as well as that of others have demonstrated that agonist-mediated receptor stimulation leads to the activation of phospholipase C and formation of second messengers, diacyl glycerol and inositol ...
Gundu H.R. Rao
doaj   +1 more source

Au naturale: use of biologically derived cyclic di-nucleotides for cancer immunotherapy

open access: yesOpen Biology, 2021
Cyclic di-nucleotides (CDNs) are widespread second messenger signalling molecules that regulate fundamental biological processes across the tree of life.
Christopher M. Waters
doaj   +1 more source

Probing ligand selectivity in pathogens

open access: yeseLife, 2023
Why does protein kinase A respond to purine nucleosides in certain pathogens, but not to the cyclic nucleotides that activate this kinase in most other organisms?
Bryan VanSchouwen, Giuseppe Melacini
doaj   +1 more source

The Receptor-Bound Guanylyl Cyclase DAF-11 Is the Mediator of Hydrogen Peroxide-Induced cGMP Increase in Caenorhabditis elegans [corrected].. [PDF]

open access: yesPLoS ONE, 2013
Adenosine 3', 5'-cyclic monophosphate (cAMP) and guanosine 3', 5'-cyclic monophosphate (cGMP) are well-studied second messengers that transmit extracellular signals into mammalian cells, with conserved functions in various other species such as ...
Ulrike Beckert   +6 more
doaj   +1 more source

Enzyme Characterization of Pro-virulent SntA, a Cell Wall-Anchored Protein of Streptococcus suis, With Phosphodiesterase Activity on cyclic-di-AMP at a Level Suited to Limit the Innate Immune System

open access: yesFrontiers in Microbiology, 2022
Streptococcus suis and Streptococcus agalactiae evade the innate immune system of the infected host by mechanisms mediated by cell wall-anchored proteins: SntA and CdnP, respectively.
Alicia Cabezas   +6 more
doaj   +1 more source

C-terminal β9-strand of the cyclic nucleotide-binding homology domain stabilizes activated states of Kv11.1 channels. [PDF]

open access: yesPLoS ONE, 2013
Kv11.1 potassium channels are important for regulation of the normal rhythm of the heartbeat. Reduced activity of Kv11.1 channels causes long QT syndrome type 2, a disorder that increases the risk of cardiac arrhythmias and sudden cardiac arrest.
Chai Ann Ng   +5 more
doaj   +1 more source

Time Course of the Increase in the Myocardial Slow Inward Current after a Photochemically Generated Concentration Jump of Intracellular cAMP [PDF]

open access: yes, 1983
Voltage-clamped atrial trabeculae from bullfrog hearts were exposed to membrane-permeant photolyzable o-nitrobenzyl esters of cAMP and cGMP. UV flashes produced intracellular concentration jumps of cAMP or cGMP. With the cAMP derivative, flashes resulted
Engels, Joachim   +3 more
core   +1 more source

Crosstalk between G-protein and Ca2+ pathways switches intracellular cAMP levels [PDF]

open access: yes, 2001
Cyclic adenosine monophosphate and cyclic guanosine monophosphate are universal intracellular messengers whose concentrations are regulated by molecular networks comprised of different isoforms of the synthases adenylate cyclase or guanylate cyclase and ...
A Dietz   +22 more
core   +2 more sources

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