Buscar
Mostrando ítems 31-40 de 4545
Long Signaling Cascades Tend to Attenuate Retroactivity
(Cell Press, 2011-04)
Signaling pathways consisting of phosphorylation/dephosphorylation cycles with no explicit feedback allow signals to propagate not only from upstream to downstream but also from downstream to upstream due to retroactivity ...
G protein-coupled receptor signal transduction and Ca2+ signaling pathways of the allatotropin/orexin system in Hydra
(Academic Press Inc Elsevier Science, 2021-01-01)
Allatotropin is a pleiotropic peptide originally characterized in insects. The existence of AT neuropeptide signaling was proposed in other invertebrates. In fact, we previously proposed the presence of an AT-like system ...
Push-Pull and Feedback Mechanisms Can Align Signaling System Outputs with Inputs
(Cell Press, 2016-11)
Many cell signaling systems, including the yeast pheromone response system, exhibit “dose-response alignment” (DoRA), in which output of one or more downstream steps closely matches the fraction of occupied receptors. DoRA ...
The GTPase-activating protein Rap1GAP: A new player to modulate Ret signaling
(Inst Biochemistry & Cell Biology, 2011-02)
SLAM and CD31: Signaling molecules involved in cytokine secretion during the development of innate and adaptive immune responses
(Elsevier, 2007-02)
Immune cells are modulated through the crosslinking of receptors named "immunoreceptors". Ligation of immunoreceptors by their ligands induces a tyrosine-phosphorylation signal that is essential for cell activation or ...
The shade-avoidance syndrome: Multiple signals and ecological consequences
(Wiley Blackwell Publishing, Inc, 2017-01)
Plants use photoreceptor proteins to detect the proximity of other plants and to activate adaptive responses. Of these photoreceptors, phytochrome B (phyB), which is sensitive to changes in the red (R) to far-red (FR) ratio ...
Retrograde bone morphogenetic protein signaling shapes a key circadian pacemaker circuit
(Society For Neuroscience, 2013-01)
The neuropeptide pigment-dispersing factor (PDF) synchronizes molecular oscillations within circadian pacemakers in the Drosophila brain. It is expressed in the small ventral lateral neurons (sLNvs) and large ventral lateral ...
Analysis of a Signal Transmission in a Pair of Izhikevich Coupled Neurons
(World Scientific, 2020-12)
Individual neuron models give a comprehensive explanation of the behaviour of the electrical potential of cell membranes. These models were and are a source of constant analysis to understand the functioning of, mainly, ...
Molecular Basis of Redox Signaling
(Landes Bioscience, 2019-05)
Oxidants are produced in physiological and pathological conditions. The production of reactive nitrogen and oxygen species (RNS and ROS, respectively) can lead to vastly different cellular outcomes depending on their ...