Abstract
When purifying a membrane protein, finding a detergent for solubilization is one of the first steps to master. Ideally, only little time is invested to identify the best-suited detergent, which on the one hand would solubilize large amounts of the target protein but on the other hand would sustain the protein’s activity. Here we describe the solubilization screen and subsequent activity assay we have optimized for the bacterial P-type ATPase KdpFABC. In just 2 days, more than 70 detergents were tested for their solubilization potential. Afterwards, a smaller selection of the successful detergents was assayed for their ability to retain the activity of the membrane protein complex.
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Stock, C., Hänelt, I. (2020). Membrane Protein Solubilization and Quality Control: An Example of a Primary Active Transporter. In: Perez, C., Maier, T. (eds) Expression, Purification, and Structural Biology of Membrane Proteins. Methods in Molecular Biology, vol 2127. Humana, New York, NY. https://doi.org/10.1007/978-1-0716-0373-4_7
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