Results 31 to 40 of about 817,806 (383)

Single-molecule imaging reveals receptor-G protein interactions at cell surface hot spots [PDF]

open access: yes, 2017
G-protein-coupled receptors mediate the biological effects of many hormones and neurotransmitters and are important pharmacological targets. They transmit their signals to the cell interior by interacting with G proteins.
A Gautier   +43 more
core   +1 more source

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

Role of G-protein coupled receptors in cardiovascular diseases

open access: yesFrontiers in Cardiovascular Medicine, 2023
Cardiovascular diseases (CVDs) are the leading cause of death globally, with CVDs accounting for nearly 30% of deaths worldwide each year. G-protein-coupled receptors (GPCRs) are the most prominent family of receptors on the cell surface, and play an ...
Yuanqiang Li   +4 more
doaj   +1 more source

Inhibition of Subsets of G Protein-coupled Receptors by Empty Mutants of G Protein α Subunits in Go, G11, and G16 [PDF]

open access: yes, 2000
We previously reported that the xanthine nucleotide binding Goα mutant, GoαX, inhibited the activation of Gi-coupled receptors. We constructed similar mutations in G11α and G16α and characterized their nucleotide binding and receptor interaction.
Gu, Lingjie, Simon, Melvin I., Yu, Bo
core   +1 more source

G-protein-coupled receptor kinases

open access: yesKidney International, 1996
beta-Adrenergic receptors are prototypes of the many G-protein-coupled receptors. Activation and inactivation of these receptors are regulated by multiple mechanisms which can affect either their function or their expression. The most obvious changes of such receptor systems are induced by activation of the receptors themselves by their respective ...
Federico Mayor   +3 more
openaire   +3 more sources

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

Numerical simulation of the viral entry into a cell driven by receptor diffusion [PDF]

open access: yes, 2021
The present study focuses on the receptor driven endocytosis typical of viral entry into a cell. A locally increased density of receptors at the time of contact between the cell and the virus is necessary in this case. The virus is considered as a substrate with fixed receptors on its surface, whereas the receptors of the host cell are free to move ...
arxiv   +1 more source

On the hierarchical classification of G Protein-Coupled Receptors [PDF]

open access: yes, 2007
Motivation: G protein-coupled receptors (GPCRs) play an important role in many physiological systems by transducing an extracellular signal into an intracellular response. Over 50% of all marketed drugs are targeted towards a GPCR.
A. A. Freitas   +31 more
core   +2 more sources

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

Increased accuracy of ligand sensing by receptor internalization [PDF]

open access: yesPhys. Rev. E 81, 021909 (2010), 2010
Many types of cells can sense external ligand concentrations with cell-surface receptors at extremely high accuracy. Interestingly, ligand-bound receptors are often internalized, a process also known as receptor-mediated endocytosis. While internalization is involved in a vast number of important functions for the life of a cell, it was recently also ...
arxiv   +1 more source

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