Muscarinic toxin 7 (MT7) is a mamba venom peptide that binds selectively to the M1 muscarinic acetylcholine receptor. We have previously shown that the second (ECL2) and third (ECL3) extracellular loops of the M1 receptor are critically involved in ...
Katja Näreoja+2 more
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FRET-based detection of M1 muscarinic acetylcholine receptor activation by orthosteric and allosteric agonists. [PDF]
Muscarinic acetylcholine receptors (mAChRs) are 7-transmembrane, G protein-coupled receptors that regulate a variety of physiological processes and represent potentially important targets for therapeutic intervention. mAChRs can be stimulated by full and
Danijela Markovic+6 more
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Resolution of complex fluorescence spectra of lipids and nicotinic acetylcholine receptor by multivariate analysis reveals protein-mediated effects on the receptor's immediate lipid microenvironment [PDF]
Analysis of fluorescent spectra from complex biological systems containing various fluorescent probes with overlapping emission bands is a challenging task. Valuable information can be extracted from the full spectra, however, by using multivariate analysis (MA) of measurements at different wavelengths.
arxiv +1 more source
Parkinson’s disease (PD) is a neurodegenerative disorder characterized by motor control deficits, which is associated with the loss of striatal dopaminergic neurons from the substantia nigra.
René A. J. Crans+13 more
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A Hydrophobic Gate in an Ion Channel: The Closed State of the Nicotinic Acetylcholine Receptor [PDF]
The nicotinic acetylcholine receptor (nAChR) is the prototypic member of the `Cys-loop' superfamily of ligand-gated ion channels which mediate synaptic neurotransmission, and whose other members include receptors for glycine, gamma-aminobutyric acid, and serotonin.
arxiv +1 more source
Cholinergic inputs into the prefrontal cortex (PFC) are associated with attention and cognition; however there is evidence that acetylcholine also has a role in PFC dependent learning and memory.
Henry Giles Stratten Martin+21 more
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Effect of green flickering light on myopia development and expression of M1 muscarinic acetylcholine receptor in guinea pigs [PDF]
AIM: To investigate the effects of green flickering light on refractive development and expression of muscarinic acetylcholine receptor (mAChR) M1 in the eyes of guinea pigs.
Yuan Tao+5 more
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Alpha7 nicotinic acetylcholine receptor signaling modulates ovine fetal brain astrocytes transcriptome in response to endotoxin [PDF]
Neuroinflammation in utero may result in lifelong neurological disabilities. Astrocytes play a pivotal role, but the mechanisms are poorly understood. No early postnatal treatment strategies exist to enhance neuroprotective potential of astrocytes. We hypothesized that agonism on alpha7 nicotinic acetylcholine receptor (alpha7nAChR) in fetal astrocytes
arxiv +1 more source
Memetic Algorithms for Ligand Expulsion from Protein Cavities [PDF]
Ligand diffusion through proteins is a fundamental process governing biological signaling and enzymatic catalysis. The complex topology of protein tunnels results in difficulties with computing ligand escape pathways by standard molecular dynamics (MD) simulations. Here, two novel methods for searching of ligand exit pathways and cavity exploration are
arxiv +1 more source
Pharmacological evaluation of the long-term effects of xanomeline on the M(1) muscarinic acetylcholine receptor. [PDF]
Xanomeline is a unique agonist of muscarinic receptors that possesses functional selectivity at the M(1) and M(4) receptor subtypes. It also exhibits wash-resistant binding to and activation of the receptor.
Marianne K O Grant+5 more
doaj +1 more source