Publication

Transient-expression technologies, their application and scale-up: 5-HT3 serotonin receptor case study

Horst Arthur Vogel, Rudolf Hovius
2000
Conference Papers

Abstract

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 production yielded 1 to 2 mg of receptor protein per liter. The solubilisation of the receptor from membranes has been optimised; C12E9 solubilised 50 to 60 % of the ligand binding activity. A C-terminally engineered hexahistidine-tag facilited efficient purification of the receptor in a functional form. Sufficient quantities of protein are now available to enable biophysical characterisation of the 5-HT3 receptor.

Official source

https://infoscience.epfl.ch/entities/publication/3deb8f74-3972-455c-929f-90a8ec0cd810

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Horst Arthur Vogel, Rudolf Hovius
2000
Conference Papers

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/3deb8f74-3972-455c-929f-90a8ec0cd810

About this result

Related concepts (26)

Receptor (biochemistry)

In biochemistry and pharmacology, receptors are chemical structures, composed of protein, that receive and transduce signals that may be integrated into biological systems. These signals are typically chemical messengers which bind to a receptor and produce physiological responses such as change in the electrical activity of a cell. For example, GABA, an inhibitory neurotransmitter inhibits electrical activity of neurons by binding to GABA_A receptors.

G protein-coupled receptor

G protein-coupled receptors (GPCRs), also known as seven-(pass)-transmembrane domain receptors, 7TM receptors, heptahelical receptors, serpentine receptors, and G protein-linked receptors (GPLR), form a large group of evolutionarily related proteins that are cell surface receptors that detect molecules outside the cell and activate cellular responses. They are coupled with G proteins.

5-HT receptor

5-HT receptors, 5-hydroxytryptamine receptors, or serotonin receptors, are a group of G protein-coupled receptor and ligand-gated ion channels found in the central and peripheral nervous systems. They mediate both excitatory and inhibitory neurotransmission. The serotonin receptors are activated by the neurotransmitter serotonin, which acts as their natural ligand. The serotonin receptors modulate the release of many neurotransmitters, including glutamate, GABA, dopamine, epinephrine / norepinephrine, and acetylcholine, as well as many hormones, including oxytocin, prolactin, vasopressin, cortisol, corticotropin, and substance P, among others.