Fractionation of LDL (Low-density Lipoprotein) Containing Plasma from Chicken Egg Yolk
2:04
Isolation of LDL Particles from Plasma
3:16
Incubation of S. aureus with LDLs for Membrane Lipid Analysis
5:18
Extraction of S. aureus Membrane Lipids
6:54
Analysis of S. aureus Lipid Profiles using High Resolution/Accurate Mass Spectrometry
8:26
Database Searching to Identify Endogenous S. aureus and Exogenous LDL-derived Lipids
9:54
Results: Fatty Acid Composition of S. aureus Phospholipids Cultured with Chicken LDLs
11:29
Conclusion
Transcript
This protocol provides a framework for studying the incorporation of exogenous fatty acids from complex host sources into bacterial membranes, particularly staphylococcus aureus. The protocol utilizes unbiased lipidomic analysis and lipoprotein pa
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This method provides a framework for studying incorporation of exogenous fatty acids from complex host sources into bacterial membranes, particularly Staphylococcus aureus. To achieve this, protocols for the enrichment of lipoprotein particles from chicken egg yolk and subsequent fatty acid profiling of bacterial phospholipids utilizing mass spectrometry are described.