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Azouaoui H, Montigny C, Jacquot A, Barry R, Champeil P, Lenoir G. Coordinated Overexpression in Yeast of a P4-ATPase and Its Associated Cdc50 Subunit: The Case of the Drs2p/Cdc50p Lipid Flippase Complex. Methods Mol Biol 2016; 1377:37-55. [PMID: 26695021 DOI: 10.1007/978-1-4939-3179-8_6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Structural and functional characterization of integral membrane proteins requires milligram amounts of purified sample. Unless the protein you are studying is abundant in native membranes, it will be critical to overexpress the protein of interest in a homologous or heterologous way, and in sufficient quantities for further purification. The situation may become even more complicated if you chose to investigate the structure and function of a complex of two or more membrane proteins. Here, we describe the overexpression of a yeast lipid flippase complex, namely the P4-ATPase Drs2p and its associated subunit Cdc50p, in a coordinated manner. Moreover, we can take advantage of the fact that P4-ATPases, like most other P-type ATPases, form an acid-stable phosphorylated intermediate, to verify that the expressed complex is functional.
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Affiliation(s)
- Hassina Azouaoui
- Institute for Integrative Biology of the Cell (I2BC) - UMR 9198 CEA/CNRS/Université Paris-Sud, Gif-sur-Yvette Cedex, 91191, France
- CEA, iBiTec-S/SB2SM, CEA Saclay, Gif-sur-Yvette, 91191, France
| | - Cédric Montigny
- Institute for Integrative Biology of the Cell (I2BC) - UMR 9198 CEA/CNRS/Université Paris-Sud, Gif-sur-Yvette Cedex, 91191, France
- CEA, iBiTec-S/SB2SM, CEA Saclay, Gif-sur-Yvette, 91191, France
| | - Aurore Jacquot
- Institute for Integrative Biology of the Cell (I2BC) - UMR 9198 CEA/CNRS/Université Paris-Sud, Gif-sur-Yvette Cedex, 91191, France
- CEA, iBiTec-S/SB2SM, CEA Saclay, Gif-sur-Yvette, 91191, France
- UMR 5004, Biochimie et Physiologie Moléculaire des Plantes, Institut de Biologie Intégrative des Plantes-Claude Grignon, Agro-M/CNRS/INRA/SupAgro/UM2, Montpellier, 34060, France
| | - Raphaëlle Barry
- Institute for Integrative Biology of the Cell (I2BC) - UMR 9198 CEA/CNRS/Université Paris-Sud, Gif-sur-Yvette Cedex, 91191, France
- CEA, iBiTec-S/SB2SM, CEA Saclay, Gif-sur-Yvette, 91191, France
- INSERM, U968, Paris, 75012, France
- UMR_S 968, Institut de la Vision, Sorbonne Universités, UPMC Univ Paris 06, Paris, 75012, France
- CNRS, UMR 7210, Paris, 75012, France
| | - Philippe Champeil
- Institute for Integrative Biology of the Cell (I2BC) - UMR 9198 CEA/CNRS/Université Paris-Sud, Gif-sur-Yvette Cedex, 91191, France
- CEA, iBiTec-S/SB2SM, CEA Saclay, Gif-sur-Yvette, 91191, France
| | - Guillaume Lenoir
- Institute for Integrative Biology of the Cell (I2BC) - UMR 9198 CEA/CNRS/Université Paris-Sud, Gif-sur-Yvette Cedex, 91191, France.
- CEA, iBiTec-S/SB2SM, CEA Saclay, Gif-sur-Yvette, 91191, France.
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