Outer membrane vesicles (OMVs) are naturally secreted from the bacterial cell surface and therefore localized in the cell-free supernatant of bacterial cultures. Here we describe methods for crude and density gradient-purified OMV isolation and protocols for control analyses for protein profiling (SDS-PAGE), detection of indicator proteins (immunoblot analysis), lipid profiling (lipid extraction and LC-MS analysis), vesicle size determination (NanoSight), rough estimation of biomass (TrayCell™), as well as quantifications of defined OMV components, e.g., proteins (Bradford) and LPS (Purpald).
CITATION STYLE
Kohl, P., Zingl, F. G., Eichmann, T. O., & Schild, S. (2018). Isolation of outer membrane vesicles including their quantitative and qualitative analyses. In Methods in Molecular Biology (Vol. 1839, pp. 117–134). Humana Press Inc. https://doi.org/10.1007/978-1-4939-8685-9_11
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