Structural basis for regulating lipopolysaccharide transmembrane transport.
Gram-negative bacteria are surrounded by a multilayered cell envelope with a mostly impermeable outer membrane that provides intrinsic resistance to many antibiotics1-5. The outer membrane is an asymmetrical bilayer with phospholipids in the inner leaflet and lipopolysaccharide (LPS) in the outer leaflet6,7. An LPS tra...