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Solubilization and Stabilization of Native Membrane Proteins for Drug Discovery

Part of the Methods in Molecular Biology book series (MIMB,volume 2247)


Membrane proteins (MPs) are stable in their native lipid environment. To enable structural and functional investigations, MPs need to be extracted from the membrane. This is a critical step that represents the main obstacle for MP biochemistry and structural biology. Here we describe detergent solubilization screening of MPs using dot-blot and Western-blot analyses. Good solubilization conditions are ranked for their best capacity to stabilize MPs using thermal shift assay. The protein functionality is evaluated by radioligand binding (for G-protein-coupled receptor) and ATPase activity (ABC Transporter) and finally the aggregation status as well as protein homogeneity are assessed by Native-polyacrylamide gel, chemical cross-linking, and size exclusion chromatography.

Key words

  • Membrane proteins
  • Solubilization
  • Stabilization
  • Detergent
  • Native-PAGE
  • Size exclusion chromatography
  • Chemical-crosslinking
  • Function

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  • DOI: 10.1007/978-1-0716-1126-5_14
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Corvest, V., Jawhari, A. (2021). Solubilization and Stabilization of Native Membrane Proteins for Drug Discovery. In: Poterszman, A. (eds) Multiprotein Complexes. Methods in Molecular Biology, vol 2247. Humana, New York, NY.

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  • Publisher Name: Humana, New York, NY

  • Print ISBN: 978-1-0716-1125-8

  • Online ISBN: 978-1-0716-1126-5

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