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

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.


Published in:
BIOCHEMICAL SOCIETY TRANSACTIONS, 27, 956-960
Presented at:
Colloquium on Expression and Purification of Membrane Proteins,, Keele, UK, JULy 20-22, 1999
Year:
1999
Publisher:
London, PORTLAND PRESS
ISSN:
0300-5127
Laboratories:




 Record created 2010-03-17, last modified 2018-04-29


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