Fluorescence techniques for fundamental and applied studies of membrane protein receptors: the 5-HT3 serotonin receptor
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The binding of the fluorescein-labeled antagonist GR-flu ([1,2,3,9-tetrahydro-3-[(5-methyl-1H-imidazol-4-yl)methyl]-9-(3-amino- (N-fluoresceinthiocarbamoyl)propyl)-4H-carbazol-4-one]) to a purified, detergent-solubilized ligand-gated ion channel, the type- ...
We have measured fluorescence resonance energy transfer (FRET) between a fluorescent antagonist, bound to the purified detergent-solubilized serotonin type 3 receptor, and a lipophilic acceptor probe partitioned into the micelle surrounding the detergent-s ...
A review. Cell-based assays are the predominant means of assessing activation of ionotropic receptors and G protein-coupled receptors (GPCRs), but are limited by their inherent complexity. Here we present an approach to immobilize receptors stably and with ...
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The nicotinic acetylcholine receptor from Torpedo was immobilised in tethered membranes. Surface plasmon resonance was used to quantify the binding of ligands and antibodies to the receptor. The orientation and structural integrity of the surface-reconstit ...
The aim of this study is to obtain voxel-by-voxel images of binding parameters between [11C]-Flumazenil and benzodiazepine receptors using positron emission tomography (PET). We estimate five local parameters (k1, k2, B'max, kon/VR, koff) by fitting a thre ...
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A highly-sensitive surface fluorescence technique was combined with a powerful method for the oriented reversible immobilization of membrane proteins on oxide surfaces. Affinity and kinetic parameters of the interaction of the receptor and a fluorescent li ...
The 5-hydroxytryptamine receptor of type 3 was investigated by fluorescence correlation spectroscopy (FCS). Binding constants of fluorescently labeled ligands, the stoichiometry, and the mass of the receptor are readily accessible by this technique, while ...