Results 51 to 60 of about 264,308 (203)

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

Homologous desensitization of signalling by the beta (β) isoform of the human thromboxane A2 receptor [PDF]

open access: yesBiochimica et Biophysica Acta (BBA) - Molecular and Cell Biology of Lipids, 2006
Thromboxane (TX) A(2) is a potent stimulator of platelet activation/aggregation and smooth muscle contraction and contributes to a variety of pathologies within the vasculature. In this study, we investigated the mechanism whereby the cellular responses to TXA(2) mediated through the TPbeta isoform of the human TXA(2) receptor (TP) are dynamically ...
Kelley-Hickie, Leanne P.   +1 more
openaire   +4 more sources

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

Pharmacological MRI: Utility in Understanding Drug Mechanisms in Psychiatric Disorders

open access: yesJournal of Magnetic Resonance Imaging, EarlyView.
ABSTRACT Pharmacological MRI (pharmaMRI) has emerged as a powerful tool to study how psychoactive drugs affect brain function and to uncover mechanisms of drug action in psychiatric disorders. This review provides an overview of key techniques used in pharmaMRI, including BOLD‐fMRI, arterial spin labeling (ASL), and cerebral blood volume (CBV) mapping,
Christin Y. Sander   +4 more
wiley   +1 more source

Carbachol-Induced Secretion and Homologous Desensitization in Rat Basophilic Leukemia (RBL-2H3) Cells Transfected With Human m2 Muscarinic Acetylcholine Receptors

open access: yesJournal of Pharmacological Sciences, 2004
Carbachol (CCh) caused a dose-dependent release of β-hexosaminidase and an increase in the production of inositol 1,4,5-trisphosphate (IP3) in RBL-2H3 cells transfected with m2 mAChR cDNA (RBL-m2 cells).
Kazuhiko Oishi   +4 more
doaj   +1 more source

Cellular Mechanism and Key Insights in Allergen Immunotherapy for Allergic Rhinitis

open access: yesWorld Journal of Otorhinolaryngology - Head and Neck Surgery, EarlyView.
ABSTRACT Allergic rhinitis (AR) arises from immune responses mediated by immunoglobulin E (IgE) to inhaled allergens, representing one of the most prevalent chronic conditions worldwide. Although AR may not be a serious ailment, it holds clinical relevance as it underpins numerous complications, serves as a major risk factor for suboptimal asthma ...
Zhe Wang   +3 more
wiley   +1 more source

The Oxytocin Receptor in Spermatozoa May Originate From Both Spermatogenesis and Epididymal Maturation, and Regulates Capacitation

open access: yesAndrology, EarlyView.
Abstract Background The oxytocin receptor (OR) is a G‐protein‐coupled receptor recently identified in human spermatozoa, whose origin and role in sperm physiology remain unknown. Objectives In this study, using the pig as a model, we examine the presence of the OR in ejaculated spermatozoa through immunofluorescence and immunoblotting, and investigate ...
Jesús Martínez‐Hernández   +9 more
wiley   +1 more source

Structural Diversity in Conserved Regions Like the DRY-Motif among Viral 7TM Receptors—A Consequence of Evolutionary Pressure?

open access: yesAdvances in Virology, 2012
Several herpes- and poxviruses have captured chemokine receptors from their hosts and modified these to their own benefit. The human and viral chemokine receptors belong to class A 7 transmembrane (TM) receptors which are characterized by several ...
Ann-Sofie Mølleskov Jensen   +3 more
doaj   +1 more source

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