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XB-ART-58929
STAR Protoc 2022 Mar 15;32:101249. doi: 10.1016/j.xpro.2022.101249.
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Protocol to identify ligands of odorant receptors using two-electrode voltage clamp combined with the Xenopus oocytes heterologous expression system.

Cao S , Liu Y , Wang G .


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Two-electrode voltage clamp (TEVC) combined with the Xenopus laevis oocytes heterologous expression system is a powerful electrophysiological tool widely used to study the properties of many transmembrane proteins. Here, we describe a protocol using this combined approach to identify the ligands of odorant receptors that form ligand-gated ion channels. We detail the procedures for site-directed mutagenesis, oocyte microinjection, and TEVC recording. This protocol can also be used to identify the key residues and illustrate the structure-function relationships of these proteins. For complete details on the use and execution of this protocol, please refer to Cao et al. (2021).

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Species referenced: Xenopus laevis

References [+] :
Briant, Transmembrane domain quality control systems operate at the endoplasmic reticulum and Golgi apparatus. 2017, Pubmed