Results 41 to 50 of about 16,230 (221)

Agonist-induced internalization and desensitization of the apelin receptor [PDF]

open access: yes, 2016
Apelin acts via the G protein-coupled apelin receptor (APJ) to mediate effects on cardiovascular and fluid homeostasis. G protein-coupled receptor (GPCR) trafficking has an important role in the regulation of receptor signalling pathways and cellular ...
Lolait, Stephen J.   +4 more
core   +2 more sources

GPCR Signaling Regulation: The Role of GRKs and Arrestins

open access: yesFrontiers in Pharmacology, 2019
Every animal species expresses hundreds of different G protein-coupled receptors (GPCRs) that respond to a wide variety of external stimuli. GPCRs-driven signaling pathways are involved in pretty much every physiological function and in many pathologies.
Vsevolod V. Gurevich   +1 more
doaj   +1 more source

Circadian Aqueous Flow Mediated by β-arrestin Induced Homologous Desensitization

open access: yesExperimental Eye Research, 1997
It was hypothesized that homologous desensitization regulates signal transduction from the beta-adrenergic receptor in the ocular ciliary epithelium to affect the circadian rhythm of aqueous humor secretion. beta-arrestin-1 was cloned from the rabbit ciliary epithelium, and the full length cDNA used as a probe for Northern blot analysis to examine the ...
X L, Wan, J, Sears, S, Chen, M, Sears
openaire   +2 more sources

L-3,3',5-triiodothyronine and pregnenolone sulfate inhibit Torpedo nicotinic acetylcholine receptors.

open access: yesPLoS ONE, 2019
The nicotinic acetylcholine receptor (nAChR) is an excitatory pentameric ligand-gated ion channel (pLGIC), homologous to the inhibitory γ-aminobutyric acid (GABA) type A receptor targeted by pharmaceuticals and endogenous sedatives.
Steven X Moffett   +3 more
doaj   +1 more source

A model for the fast synchronous oscillations of firing rate in rat suprachiasmatic nucleus neurons cultured in a multielectrode array dish. [PDF]

open access: yesPLoS ONE, 2014
When dispersed and cultured in a multielectrode dish (MED), suprachiasmatic nucleus (SCN) neurons express fast oscillations of firing rate (FOFR; fast relative to the circadian cycle), with burst duration ∼10 min, and interburst interval varying from 20 ...
Andrey R Stepanyuk   +2 more
doaj   +1 more source

Desensitization of the human V2 vasopressin receptor. Homologous effects in the absence of heterologous desensitization.

open access: yesJournal of Biological Chemistry, 1992
Three main pathways have been implicated in desensitization of receptors that stimulate adenylylcyclase (AC): cAMP-mediated phosphorylation; cAMP-independent phosphorylation, and receptor internalization. Cell lines derived from the murine Ltk- cell were found useful in exploring the contribution of cAMP-dependent phosphorylation in V2 vasopressin ...
M, Birnbaumer   +3 more
openaire   +2 more sources

Structural and functional characterization of an otopetrin family proton channel

open access: yeseLife, 2019
The otopetrin (OTOP) proteins were recently characterized as proton channels. Here we present the cryo-EM structure of OTOP3 from Xenopus tropicalis (XtOTOP3) along with functional characterization of the channel.
Qingfeng Chen   +4 more
doaj   +1 more source

Structural and Functional Analysis of Gly212 Mutants Reveals the Importance of Intersubunit Interactions in ASIC1a Channel Function

open access: yesFrontiers in Molecular Biosciences, 2020
Acid-sensing ion channels (ASICs) act as pH sensors in neurons. ASICs contribute to pain sensation, learning, fear behavior and to neuronal death after ischemic stroke.
Olivier Bignucolo   +5 more
doaj   +1 more source

Adrenergic receptors. Models for regulation of signal transduction processes. [PDF]

open access: yes, 1990
Adrenergic receptors are prototypic models for the study of the relations between structure and function of G protein-coupled receptors. Each receptor is encoded by a distinct gene.
Caron, MG   +3 more
core   +1 more source

Calcium imaging with genetically encoded sensor Case12: Facile analysis of α7/α9 nAChR mutants.

open access: yesPLoS ONE, 2017
Elucidation of the structural basis of pharmacological differences for highly homologous α7 and α9 nicotinic acetylcholine receptors (nAChRs) may shed light on their involvement in different physiological functions and diseases.
Irina Shelukhina   +7 more
doaj   +1 more source

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