Results 71 to 80 of about 793,543 (339)

G Protein-Coupled Receptors in Cancer [PDF]

International Journal of Molecular Sciences, 2016
Despite the fact that G protein-coupled receptors (GPCRs) are the largest signal-conveying receptor family and mediate many physiological processes, their role in tumor biology is underappreciated. Numerous lines of evidence now associate GPCRs and their downstream signaling targets in cancer growth and development.
Bar-Shavit, Rachel, Maoz, Myriam, Kancharla, Arun, Nag, Jeetendra Kumar, Agranovich, Daniel, Grisaru-Granovsky, Sorina, Uziely, Beatrice   +6 more
openaire   +2 more sources

Biophysical analysis of angiotensin II and amyloid‐β cross‐interaction in aggregation and membrane disruption

FEBS Letters, EarlyView.
Angiotensin II (AngII), a neuropeptide, interacts with amyloid‐β (Aβ), a key player in Alzheimer's disease. This study reveals that AngII reduces Aβ aggregation and membrane disruption in vitro. Biophysical assays and molecular modeling suggest AngII binds disordered Aβ forms, potentially modulating early amyloidogenic events and contributing to ...
Mohsen Habibnia, Eric Catalina‐Hernandez, Maialen Cabrerizo‐Idiazabal, Ramon Barnadas‐Rodríguez, Mario Lopez‐Martin, Alex Peralvarez‐Marin   +5 more
wiley   +1 more source

Molecular mechanism of Gαi activation by non-GPCR proteins with a Gα-Binding and Activating motif [PDF]

, 2017
Heterotrimeric G proteins are quintessential signalling switches activated by nucleotide exchange on Gα. Although activation is predominantly carried out by G-protein-coupled receptors (GPCRs), non-receptor guanine-nucleotide exchange factors (GEFs) have
Baillie, George S., Blanco, Francisco J., Blanco-Canosa, Juan B., Cerione, Richard A., de la Cruz-Morcillo, Miguel Angel, DiGiacomo, Vincent, Garcia-Marcos, Mikel, Ibáñez de Opakua, Alain, Leyme, Anthony, Marivin, Arthur, Merino, Nekane, Nguyen, Lien T., Parag-Sharma, Kshitij, Ramachandran, Sekar, Villate, Maider   +14 more
core   +1 more source

Linked dimers of the AAA+ ATPase Msp1 reveal energetic demands and mechanistic plasticity for substrate extraction from lipid bilayers

FEBS Letters, EarlyView.
Cells must clear mislocalized or faulty proteins from membranes to survive. The AAA+ ATPase Msp1 performs this task, but dissecting how its six subunits work together is challenging. We engineered linked dimers with varied numbers of functional subunits to reveal how Msp1 subunits cooperate and use energy to extract proteins from the lipid bilayer ...
Deepika Gaur, Brian Acquaviva, Baylee A. Smith, Nathan Walker, Isabella Walter, Matthew L. Wohlever   +5 more
wiley   +1 more source

G-Protein Coupled Receptors Targeted by Analgesic Venom Peptides

Toxins, 2017
Chronic pain is a complex and debilitating condition associated with a large personal and socioeconomic burden. Current pharmacological approaches to treating chronic pain such as opioids, antidepressants and anticonvulsants exhibit limited efficacy in ...
James T. Daniel, Richard J. Clark
doaj   +1 more source

Fusion protein strategies for cryo-EM study of G protein-coupled receptors

Nature Communications, 2022
Here, Zhang et al. explore fusion protein strategies to facilitate cryo-EM structural studies of GPCRs alone- without signal transducers- in ligand bound or unliganded form.
Kaihua Zhang, Hao Wu, Nicholas Hoppe, Aashish Manglik, Yifan Cheng   +4 more
doaj   +1 more source

Reciprocal control of viral infection and phosphoinositide dynamics

FEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source

Functional selectivity of GPCR-directed drug action through location bias. [PDF]

, 2017
G-protein-coupled receptors (GPCRs) are increasingly recognized to operate from intracellular membranes as well as the plasma membrane. The β 2 -adrenergic GPCR can activate G s -linked cyclic AMP (G s -cAMP) signaling from endosomes.
Conti, Marco, Huang, Bo, Irannejad, Roshanak, Mika, Delphine, Pessino, Veronica, von Zastrow, Mark, Wedegaertner, Philip B.   +6 more
core   +3 more sources

Stabilization of G protein-coupled receptors by point mutations

Frontiers in Pharmacology, 2015
G protein-coupled receptors (GPCRs) are flexible integral membrane proteins involved in transmembrane signaling. Their involvement in many physiological processes makes them interesting targets for drug development.
Franziska eHeydenreich, Franziska eHeydenreich, Ziva eVuckovic, Ziva eVuckovic, Milos eMatkovic, Milos eMatkovic, Dmitry eVeprintsev, Dmitry eVeprintsev   +7 more
doaj   +1 more source

The β-Arrestins: Multifunctional Regulators of G Protein-coupled Receptors*

Journal of Biological Chemistry, 2016
The β-arrestins (βarrs) are versatile, multifunctional adapter proteins that are best known for their ability to desensitize G protein-coupled receptors (GPCRs), but also regulate a diverse array of cellular functions. To signal in such a complex fashion,
Jeffrey S. Smith, S. Rajagopal
semanticscholar   +1 more source