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The surface of the outer membrane of Gram-negative bacteria is covered by a tightly packed layer of lipopolysaccharide molecules which provide a barrier against many toxic compounds and antibiotics. Lipopolysaccharide,… Click to show full abstract
The surface of the outer membrane of Gram-negative bacteria is covered by a tightly packed layer of lipopolysaccharide molecules which provide a barrier against many toxic compounds and antibiotics. Lipopolysaccharide, synthesized in the cytoplasm, is assembled in the periplasmic leaflet of the inner membrane where the intermembrane Lpt system mediates its transport to the cell surface. The first step of lipopolysaccharide transport is its extraction from the outer leaflet of inner membrane powered by the atypical LptB2FGC ABC transporter. Here we review latest advances leading to understanding at molecular level how lipopolysaccharide is transported irreversibly to the outer membrane.
Journal Title: Research in microbiology
Year Published: 2019
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