Results 41 to 50 of about 627,526 (303)

Regulating G protein-coupled receptors by topological inversion

open access: yeseLife, 2019
G protein-coupled receptors (GPCRs) are a family of proteins containing seven transmembrane helices, with the N- and C-terminus of the protein located at the extracellular space and cytosol, respectively.
Bray Denard   +4 more
doaj   +1 more source

Calcium-independent inhibitory G-protein signaling induces persistent presynaptic muting of hippocampal synapses [PDF]

open access: yes, 2011
Adaptive forms of synaptic plasticity that reduce excitatory synaptic transmission in response to prolonged increases in neuronal activity may prevent runaway positive feedback in neuronal circuits.
Chang, Chun Yun   +3 more
core   +2 more sources

G-Protein coupled receptors: answers from simulations

open access: yesBeilstein Journal of Organic Chemistry, 2017
Molecular-dynamics (MD) simulations are playing an increasingly important role in research into the modes of action of G-protein coupled receptors (GPCRs).
Timothy Clark
doaj   +1 more source

Probing the role of the cation–π interaction in the binding sites of GPCRs using unnatural amino acids [PDF]

open access: yes, 2009
We describe a general application of the nonsense suppression methodology for unnatural amino acid incorporation to probe drug–receptor interactions in functional G protein-coupled receptors (GPCRs), evaluating the binding sites of both the M2 muscarinic
Ballesteros   +31 more
core   +3 more sources

G Protein-Coupled Receptor Kinases Take Central Stage

open access: yesCells, 2022
The relevance of the family of G protein-coupled receptor kinases (GRKs) is based on its key participation in the regulation and intracellular dynamics of the largest family of membrane receptors, namely G protein-coupled receptors (GPCRs) [...]
Federico Mayor, Cristina Murga
doaj   +1 more source

Thrombin Protease-activated Receptor-1 Signals through Gq- and G13-initiated MAPK Cascades Regulating c-Jun Expression to Induce Cell Transformation [PDF]

open access: yes, 2003
Although the ability of G protein-coupled receptors to stimulate normal and aberrant cell growth has been intensely investigated, the precise nature of the molecular mechanisms underlying their transforming potential are still not fully understood.
Gutkind, J. Silvio   +4 more
core   +1 more source

Signal Transduction of Sphingosine-1-Phosphate G Protein—Coupled Receptors

open access: yesThe Scientific World Journal, 2006
Sphingosine-1-phosphate (S1P) is a bioactive lipid capable of eliciting dramatic effects in a variety of cell types. Signaling by this molecule is by a family of five G protein—coupled receptors named S1P1–5 that signal through a variety of pathways to ...
Nicholas Young, James R. Van Brocklyn
doaj   +1 more source

G Protein–Coupled Receptor Rhodopsin [PDF]

open access: yesAnnual Review of Biochemistry, 2006
The rhodopsin crystal structure provides a structural basis for understanding the function of this and other G protein–coupled receptors (GPCRs). The major structural motifs observed for rhodopsin are expected to carry over to other GPCRs, and the mechanism of transformation of the receptor from inactive to active forms is thus likely conserved ...
openaire   +2 more sources

A G protein-gated K channel is activated via beta 2-adrenergic receptors and G beta gamma subunits in Xenopus oocytes [PDF]

open access: yes, 1995
In many tissues, inwardly rectifying K channels are coupled to seven- helix receptors via the Gi/Go family of heterotrimeric G proteins. This activation proceeds at least partially via G beta gamma subunits.
Dascal, Nathan   +4 more
core   +2 more sources

G Protein-Coupled Receptors in Taste Physiology and Pharmacology

open access: yesFrontiers in Pharmacology, 2020
Heterotrimeric G protein-coupled receptors (GPCRs) comprise the largest receptor family in mammals and are responsible for the regulation of most physiological functions.
Raise Ahmad, Julie E. Dalziel
doaj   +1 more source

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