Characterization of the Ligand-binding Site of the Serotonin 5-HT3 Receptor: The Role of Glutamate Residues 97, 224,and 235
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The subject of this thesis is the study of the structure and function of the human muscle nicotinic acetylcholine receptor (nAChR), which is a typical member of the large class of ligand-gated ion channels. Appropriate techniques, like site-directed mutage ...
In this thesis, two different fluorescent labeling techniques for in vivo investigations on the 5-HT3 receptor (5-HT3R) functions are presented. This plasma membrane protein contains five subunits surrounding an ion channel that opens after binding of a 5- ...
Sequential stages in the life cycle of the ionotropic 5-HT3 receptor (5-HT3R) were resolved temporally and spatially in live cells by multicolor fluorescence confocal microscopy. The insertion of the enhanced cyan fluorescent protein into the large intrace ...
Chem. and biol. labeling is fundamental for the elucidation of the function of proteins within biochem. cellular networks. In particular, fluorescent probes allow detection of mol. interactions, mobility and conformational changes of proteins in live cells ...
A symposium report. Since the discovery of the immunosuppressive activity of cyclosporine A (CsA), considerable work has been devoted to the chem. synthesis of potent analogs. More recently, the finding of potential anti-HIV I activity of CsA raised intere ...
FMOC-L-Leucine (F-L-Leu) is a chemically distinct PPARgamma ligand. Two molecules of F-L-Leu bind to the ligand binding domain of a single PPARgamma molecule, making its mode of receptor interaction distinct from that of other nuclear receptor ligands. F-L ...
The thesis presented here describes studies of ligand binding, function, and arrangement of ligand-gated ion channels in cell membranes. Fluorescence microscopy and the patch clamp technique are used to investigate the nicotinic acetylcholine receptor and ...
Fluorescence Correlation Spectroscopy (FCS) is a suitable technique to investigate biomol. interactions. The advantage of FCS lies in its wide dynamic range in the time and concn. domain, its sensitivity, and thus in the small amt. of material needed. The ...
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 ...
The invention relates to various embodiments of a bioanal. reagent with at least one vesicle, generated from a living cell, and at least one receptor for study of signal transduction. The invention further relates to methods for prodn. of said bioanal. rea ...
(Ecole Polytechnique Federale de Lausanne, Switz.; Zeptosens A.-G.).2002