Conformational basis of G protein-coupled receptor signaling versatility

LM Wingler, RJ Lefkowitz - Trends in cell biology, 2020 - cell.com
G protein-coupled receptors (GPCRs) are privileged structural scaffolds in biology that have
the versatility to regulate diverse physiological processes. Interestingly, many GPCR ligands …

Biased ligands at opioid receptors: Current status and future directions

T Che, H Dwivedi-Agnihotri, AK Shukla, BL Roth - Science signaling, 2021 - science.org
The opioid crisis represents a major worldwide public health crisis that has accelerated the
search for safer and more effective opioids. Over the past few years, the identification of …

Non-canonical β-adrenergic activation of ERK at endosomes

Y Kwon, S Mehta, M Clark, G Walters, Y Zhong, HN Lee… - Nature, 2022 - nature.com
G-protein-coupled receptors (GPCRs), the largest family of signalling receptors, as well as
important drug targets, are known to activate extracellular-signal-regulated kinase (ERK)—a …

Common coupling map advances GPCR-G protein selectivity

AS Hauser, C Avet, C Normand, A Mancini, A Inoue… - Elife, 2022 - elifesciences.org
Two-thirds of human hormones and one-third of clinical drugs act on membrane receptors
that couple to G proteins to achieve appropriate functional responses. While G protein …

Heterotrimeric Gq proteins act as a switch for GRK5/6 selectivity underlying β-arrestin transducer bias

K Kawakami, M Yanagawa, S Hiratsuka… - Nature …, 2022 - nature.com
Signaling-biased ligands acting on G-protein-coupled receptors (GPCRs) differentially
activate heterotrimeric G proteins and β-arrestins. Although a wealth of structural knowledge …

How Carvedilol activates β2-adrenoceptors

T Benkel, M Zimmermann, J Zeiner, S Bravo… - Nature …, 2022 - nature.com
Carvedilol is among the most effective β-blockers for improving survival after myocardial
infarction. Yet the mechanisms by which carvedilol achieves this superior clinical profile are …

β-arrestin1 and 2 exhibit distinct phosphorylation-dependent conformations when coupling to the same GPCR in living cells

RS Haider, ESF Matthees, J Drube, M Reichel… - Nature …, 2022 - nature.com
Abstract β-arrestins mediate regulatory processes for over 800 different G protein-coupled
receptors (GPCRs) by adopting specific conformations that result from the geometry of the …

Community guidelines for GPCR ligand bias: IUPHAR review 32

P Kolb, T Kenakin, SPH Alexander… - British journal of …, 2022 - Wiley Online Library
GPCRs modulate a plethora of physiological processes and mediate the effects of one‐third
of FDA‐approved drugs. Depending on which ligand activates a receptor, it can engage …

β-arrestin-biased allosteric modulator of NTSR1 selectively attenuates addictive behaviors

LM Slosky, Y Bai, K Toth, C Ray, LK Rochelle, A Badea… - Cell, 2020 - cell.com
Small molecule neurotensin receptor 1 (NTSR1) agonists have been pursued for more than
40 years as potential therapeutics for psychiatric disorders, including drug addiction. Clinical …

Structural basis of GPCR coupling to distinct signal transducers: implications for biased signaling

M Seyedabadi, M Gharghabi, EV Gurevich… - Trends in biochemical …, 2022 - cell.com
Three classes of G-protein-coupled receptor (GPCR) partners–G proteins, GPCR kinases,
and arrestins–preferentially bind active GPCRs. Our analysis suggests that the structures of …