Results 71 to 80 of about 504,058 (195)

P2X2 receptors supply extracellular choline as a substrate for acetylcholine synthesis

open access: yesFEBS Open Bio, 2022
Acetylcholine (ACh), an excitatory neurotransmitter, is biosynthesized from choline in cholinergic neurons. Import from the extracellular space to the intracellular environment through the high‐affinity choline transporter is currently regarded to be the
Takuma Maruyama   +4 more
doaj   +1 more source

The tarantula toxin GxTx detains K+ channel gating charges in their resting conformation. [PDF]

open access: yes, 2019
Allosteric ligands modulate protein activity by altering the energy landscape of conformational space in ligand-protein complexes. Here we investigate how ligand binding to a K+ channel's voltage sensor allosterically modulates opening of its K ...
Angueyra, Juan M   +6 more
core   +1 more source

Manipulation of Host Cholesterol by Obligate Intracellular Bacteria

open access: yesFrontiers in Cellular and Infection Microbiology, 2017
Cholesterol is a multifunctional lipid that plays important metabolic and structural roles in the eukaryotic cell. Despite having diverse lifestyles, the obligate intracellular bacterial pathogens Chlamydia, Coxiella, Anaplasma, Ehrlichia, and Rickettsia
Dhritiman Samanta   +4 more
doaj   +1 more source

Flux imbalance analysis and the sensitivity of cellular growth to changes in metabolite pools [PDF]

open access: yes, 2013
Stoichiometric models of metabolism, such as flux balance analysis (FBA), are classically applied to predicting steady state rates - or fluxes - of metabolic reactions in genome-scale metabolic networks. Here we revisit the central assumption of FBA, i.e.
Mehta, Pankaj   +2 more
core  

Intracellular α-synuclein assemblies are sufficient to alter nanoscale diffusion in the striatal extracellular space

open access: yesnpj Parkinson's Disease
α-synucleinopathies progression involves the spread of α-synuclein aggregates through the extracellular space (ECS). Single-particle tracking studies showed that α-synuclein-induced neurodegeneration increases ECS molecular diffusivity.
J. Estaun-Panzano   +9 more
doaj   +1 more source

Time-of-Flight Secondary Ion Mass Spectrometry (ToF-SIMS): A New Tool for the Analysis of Toxicological Effects on Single Cell Level

open access: yesToxics, 2016
Single cell imaging mass spectrometry opens up a complete new perspective for strategies in toxicological risk assessment and drug discovery. In particular, time-of-flight secondary ion mass spectrometry (ToF-SIMS) with its high spatial and depth ...
Harald Jungnickel   +2 more
doaj   +1 more source

Estimation of the synaptic input firing rates and characterization of the stimulation effects in an auditory neuron

open access: yesFrontiers in Computational Neuroscience, 2015
To understand information processing in neuronal circuits, it is important to infer how a sensory stimulus impacts on the synaptic input to a neuron. An increase in neuronal firing during the stimulation results from pure excitation or from a combination
Ryota eKobayashi   +3 more
doaj   +1 more source

Liquid-liquid phase separation as an organizing principle of intracellular space: overview of the evolution of the cell compartmentalization concept. [PDF]

open access: yesCell Mol Life Sci, 2022
Antifeeva IA   +8 more
europepmc   +1 more source

A Monte Carlo model checker for probabilistic LTL with numerical constraints [PDF]

open access: yes, 2008
We define the syntax and semantics of a new temporal logic called probabilistic LTL with numerical constraints (PLTLc). We introduce an efficient model checker for PLTLc properties.
Donaldson, R, Gilbert, D
core  

Generic principles of active transport

open access: yes, 2006
Nonequilibrium collective motion is ubiquitous in nature and often results in a rich collection of intringuing phenomena, such as the formation of shocks or patterns, subdiffusive kinetics, traffic jams, and nonequilibrium phase transitions.
Franosch, Thomas   +4 more
core   +2 more sources

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