Export of O-specific lipopolysaccharide
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Updated: Sep 26, 2026

Purification and Visualization of Lipopolysaccharide from Gram-negative Bacteria by Hot Aqueous-phenol Extraction
Published on: May 28, 2012
1Department of Microbiology and Immunology, University of Western Ontario, London, Ontario N6A 5C1 Canada. mvalvano@uwo.ca
Abstract:
The O antigen is the most surface-exposed component of the lipopolysaccharide (LPS) molecule and its biogenesis involves several complex mechanisms not completely well understood. All of these mechanisms involve biochemical reactions that occur on the cytoplasmic side of the plasma membrane as well as several different translocation pathways that deliver the nascent O antigens in a glycolipid form to the periplasmic side of the plasma membrane. This article discusses our current understanding of the mechanisms operating in the biogenesis of the O-specific LPS.
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