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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
In Drosophila, the immune deficiency (Imd) pathway controls antibacterial peptide gene expression in the fat body in response to Gram-negative bacterial infection. The ultimate target of the Imd pathway is Relish, a transactivator related to mammalian P105 ...
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 ...
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 ...
The ability of organisms, or individual cells, to react to external chemical signals, which are detected and transduced by cell-surface receptors, is crucial for their survival. These receptors are the targets of the majority of clinically used medicines. ...
Classically, cellular signalling is investigated measuring different optical or elec. properties of either single cells or microliter vols. of suspensions of live cells. Here we show how ligand binding to cell surface receptors and subsequent signalling re ...
G protein-coupled receptors (GPCRs) constitute a large class of seven transmembrane proteins, which bind selectively agonists or antagonists with important consequences for cellular signaling and function. Comprehension of the mol. details of ligand bindin ...
We have expressed the 5-HT3 receptor with two transient expression sytems: the Semliki Forest virus and the HEK293EBNA. Both systems allow the rapid expression of functional receptor protein at very high level: up to 107 receptors per cell. Large scale pro ...
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 ...
G protein-coupled receptors (GPCR) represent a large family of drug targets for which there is no high-resolution structural information. In order to understand the mechanisms of ligand recognition and receptor activation, there is a strong need for novel ...