Abstract
The efficient extraction of proteins of interest from cells and tissues is not always straightforward. Here we demonstrate the differences in extraction of the focal adhesion protein Kindlin-2 from choriocarcinoma cells using NP-40 and RIPA lysis buffer. Furthermore, we demonstrate the use of a more denaturing urea/thiourea lysis buffer for solubilization, by comparing its effectiveness for solubilization of small heat-shock proteins from smooth muscle with the often utilized RIPA lysis buffer. Overall, the results demonstrate the importance of establishing the optimal lysis buffer for specific protein solubilization within the experimental workflow.
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Acknowledgement
This work was supported by a Natural Sciences and Engineering Research Council Discovery Grant (#250218), an Establishment Grant from the Saskatchewan Health Research Foundation (SHRF; #2695), and a regional partnership program grant from SHRF (#2776) and the Canadian Institutes of Health Research (#ROP-101051) to D.J.M. M.P. and N.M. were holders of Alexander Graham Bell NSERC postgraduate fellowships.
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Peach, M., Marsh, N., Miskiewicz, E.I., MacPhee, D.J. (2015). Solubilization of Proteins: The Importance of Lysis Buffer Choice. In: Kurien, B., Scofield, R. (eds) Western Blotting. Methods in Molecular Biology, vol 1312. Humana Press, New York, NY. https://doi.org/10.1007/978-1-4939-2694-7_8
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DOI: https://doi.org/10.1007/978-1-4939-2694-7_8
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