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Separation of the Cell Envelope for Gram-negative Bacteria into Inner and Outer Membrane Fractions with Technical Adjustments for Acinetobacter baumannii
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Chapters
- 00:04Introduction
- 00:55Preparation of Bacteria for Membrane Extraction
- 02:18Dissociation of the Outer Membrane and Plasmolysis
- 03:56Pressurized Homogenization and Lysis
- 04:35Total Membrane Fractionation
- 05:34Separating the Dual Membranes
- 08:00Results: Purity and Quality of Inner and Outer Membrane Fractions
- 09:36Conclusion
Gram-negative bacteria produce two spatially segregated membranes. The outer membrane is partitioned from the inner membrane by a periplasm and a peptidoglycan layer. The ability to isolate the dual bilayers of these microbes has been critical for understanding their physiology and pathogenesis.
Tags
Cell EnvelopeGram-negative BacteriaInner MembraneOuter MembraneLipidsProteinsSugarsAntibiotic KillingAntimicrobial ResistanceDisease PathogenesisAcinetobacter BaumanniiCell FractionationDetergent-freeSemi-native EnvironmentOptical DensityCentrifugationLysozymeEDTAProtease InhibitorMagnesium ChlorideNuclease
