Concept

Acétylcholine

Publications associées (26)

Quantitative proton spectroscopic imaging of the neurochemical profile in rat brain with microliter resolution at ultra-short echo times

Proton spectroscopy allows the simultaneous quantification of a high number of metabolite concentrations termed the neurochemical profile. The spin echo full intensity acquired localization (SPECIAL) scheme with an echo time of 2.7 ms was used at 9.4T for ...

Wiley-Blackwell2008

Modulation of proton-induced current fluctuations in the human nicotinic acetylcholine receptor channel

Horst Vogel, Rudolf Hovius, Christophe Danelon, Jörg Grandl

The nicotinic acetylcholine receptor (nAChR) is a ligand-gated ion channel that switches upon activation from a closed state to a full conducting state. We found that the mutation delta S268K, located at 12' position of the second transmembrane domain of t ...

2007

Functional asymmetry of transmembrane segments in nicotinic acetylcholine receptors

Horst Vogel, Rudolf Hovius, Christophe Danelon, Jörg Grandl

Nicotinic acetylcholine receptors are heteropentameric ion channels that open upon activation to a single conducting state. The second transmembrane segments of each subunit were identified as channel-forming elements, but their respective contribution in ...

2006

Electrophysiology and fluorescence microscopy of ligand-gated ion channels

Christoph Schreiter

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 ...

EPFL2005

Structure and function of the nicotinic acetylcholine receptor

Jörg Grandl

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 ...

EPFL2005

Reversible sequential-binding probe receptor-ligand interactions in single cells

Horst Vogel, Rudolf Hovius, Jean-Manuel Segura, Marinela Gjoni Boillat, Christoph Schreiter

With the reversible sequential (ReSeq) binding assay, we present a novel approach for the ultrasensitive profiling of receptor function in single living cells. This assay is based on the repetitive application of fluorescent ligands that have fast assocn.- ...

2005