Fluorescence/bioluminescence resonance energy transfer techniques to study G-protein-coupled receptor activation and signaling

MJ Lohse, S Nuber, C Hoffmann… - Pharmacological …, 2012 - Elsevier
Fluorescence and bioluminescence resonance energy transfer (FRET and BRET)
techniques allow the sensitive monitoring of distances between two labels at the nanometer …

Ion-channel regulation by G proteins

N Dascal - Trends in Endocrinology & Metabolism, 2001 - cell.com
Ion channels are end-targets (effectors) in a large number of regulatory pathways that are
initiated by G-protein-coupled neurotransmitters and hormones. Modulation of ion channels …

μ-Opioid receptor forms a functional heterodimer with cannabinoid CB1 receptor: electrophysiological and FRET assay analysis

M Hojo, Y Sudo, Y Ando, K Minami… - Journal of …, 2008 - jstage.jst.go.jp
Interactions between μ-opioid receptor (μOR) and cannabinoid CB1 receptor (CB1R) were
examined by morphological and electrophysiological methods. In baby hamster kidney …

[HTML][HTML] Gαi controls the gating of the G protein-activated K+ channel, GIRK

S Peleg, D Varon, T Ivanina, CW Dessauer, N Dascal - Neuron, 2002 - cell.com
GIRK (Kir3) channels are activated by neurotransmitters coupled to G proteins, via a direct
binding of G βγ. The role of Gα subunits in GIRK gating is elusive. Here we demonstrate that …

Anxiolytic and antidepressants' effect of Crataegus pinnatifida (Shan Zha): biochemical mechanisms

K Nitzan, D David, M Franko, R Toledano… - Translational …, 2022 - nature.com
Depression and anxiety disorders are highly prevalent. Selective serotonin reuptake
inhibitors (SSRIs) are the current first-line treatment for depression, but they have …

The M2 muscarinic G-protein-coupled receptor is voltage-sensitive

Y Ben-Chaim, O Tour, N Dascal, I Parnas… - Journal of Biological …, 2003 - ASBMB
G-protein coupled receptors are not considered to exhibit voltage sensitivity. Here, using
Xenopus oocytes, we show that the M 2 muscarinic receptor (m2R) is voltage-sensitive. The …

The roles of Gβγ and Gα in gating and regulation of GIRK channels

N Dascal, U Kahanovitch - International review of neurobiology, 2015 - Elsevier
Abstract G protein-gated K+(GIRK, or Kir3) channels mediate inhibitory neurotransmission
via G protein-coupled receptors (GPCRs) in heart and brain. The signaling cascade involves …

GPCR voltage dependence controls neuronal plasticity and behavior

E Rozenfeld, M Tauber, Y Ben-Chaim… - Nature …, 2021 - nature.com
G-protein coupled receptors (GPCRs) play a paramount role in diverse brain functions.
Almost 20 years ago, GPCR activity was shown to be regulated by membrane potential in …

[HTML][HTML] Voltage dependence of M2 muscarinic receptor antagonists and allosteric modulators

S Hazan, M Tauber, Y Ben-Chaim - Biochemical Pharmacology, 2024 - Elsevier
Muscarinic receptors are G protein-coupled receptors (GPCRs) that play a role in various
physiological functions. Previous studies have shown that these receptors, along with other …

Gαi1 and Gαi3 differentially interact with, and regulate, the G protein-activated K+ channel

T Ivanina, D Varon, S Peleg, I Rishal, Y Porozov… - Journal of Biological …, 2004 - ASBMB
G protein-activated K+ channels (GIRKs; Kir3) are activated by direct binding of Gβγ
subunits released from heterotrimeric G proteins. In native tissues, only pertussis toxin …