Results 21 to 30 of about 5,994,707 (387)

Adenosine A1 receptor: Functional receptor-receptor interactions in the brain [PDF]

open access: yesPurinergic Signalling, 2007
Over the past decade, many lines of investigation have shown that receptor-mediated signaling exhibits greater diversity than previously appreciated. Signal diversity arises from numerous factors, which include the formation of receptor dimers and interplay between different receptors.
Kathrin Sichardt, Karen Nieber
openaire   +3 more sources

RNase P-Associated External Guide Sequences Inhibit HIV-1 Infection by Shutting Down Human CCR5 Expression

open access: yesReceptors
Background: External guide sequences (EGSs) are small RNA molecules capable of hybridizing to a target mRNA and rendering the target RNA susceptible to degradation by ribonuclease P (RNase P), a tRNA processing enzyme.
Yujun Liu   +3 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

The insulin receptor [PDF]

open access: yesThe Journal of Pediatrics, 1981
Cells are endowed with specific cognitive molecules that function as receptors for hormones, neurotransmitters, and other intercellular messengers. The receptor molecules may be present in the plasma membrane, cytoplasm, or nucleus. When occupied by the messenger, the receptor is coupled to the cellular machinery that responds to the message-bearing ...
openaire   +4 more sources

Role of Glucocorticoid Receptor in Triple-Negative Breast Cancer

open access: yesReceptors
Triple-negative breast cancer (TNBC) is an aggressive tumor among breast cancer subtypes with much lower overall survival at metastasis compared to other subtypes and with limited treatment options due to a lack of targeted therapies. This has led to the
Raj Kumar
doaj   +1 more source

Exploring the kinetic selectivity of drugs targeting the β1‐adrenoceptor

open access: yesPharmacology Research & Perspectives, 2022
In this study, we report the β1‐adrenoceptor binding kinetics of several clinically relevant β1/2‐adrenoceptor (β1/2AR) agonists and antagonists. [3H]‐DHA was used to label CHO‐β1AR for binding studies. The kinetics of ligand binding was assessed using a
David A. Sykes   +5 more
doaj   +1 more source

Non-Metabolic Functions of PKM2 Contribute to Cervical Cancer Cell Proliferation Induced by the HPV16 E7 Oncoprotein

open access: yesViruses, 2021
Pyruvate kinase M2 (PKM2) mainly catalyzes glycolysis, but it also exerts non-glycolytic functions in several cancers. While it has been shown to interact with the human papillomavirus 16 (HPV16) E7 oncoprotein, the functional significance of PKM2 in HPV-
Seoung-Ae Lee   +4 more
doaj   +1 more source

Melatonin receptor expression in the zebra finch brain and peripheral tissues [PDF]

open access: yes, 2012
The circadian endocrine hormone melatonin plays a significant role in many physiological processes such as modulating sleep/wake cycle and oxidative stress.
Brandstaetter, Roland   +2 more
core   +1 more source

Ryanodine receptors [PDF]

open access: yesSkeletal Muscle, 2011
Abstract Excitation-contraction coupling involves the faithful conversion of electrical stimuli to mechanical shortening in striated muscle cells, enabled by the ubiquitous second messenger, calcium. Crucial to this process are ryanodine receptors (RyRs), the sentinels of massive intracellular calcium stores contained within the sarcoplasmic ...
Capes E Michelle   +2 more
openaire   +3 more sources

LPA3: Pharmacodynamic Differences Between Lysophosphatidic Acid and Oleoyl-Methoxy Glycerophosphothionate: Biased Agonism, Two Sites

open access: yesReceptors
Background: Lysophosphatidic acid (LPA) receptor 3 (LPA3) is involved in many physiological and pathophysiological actions of this bioactive lipid, particularly in cancer.
K. Helivier Solís   +4 more
doaj   +1 more source

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