lipopolysaccharide

(noun)

any of a large class of lipids conjugated with polysaccharides

Related Terms

Examples of lipopolysaccharide in the following topics:

  • Gram-Negative Outer Membrane

    • The outer membrane of Gram-negative bacteria invariably contains a unique component, lipopolysaccharide (LPS) in addition to proteins and phospholipids.

  • Antimicrobial Peptides

    • These peptides qualify as innovative drugs that might be used as antibiotics, anti-lipopolysaccharide drugs, or modifiers of inflammation reactions.

  • Pathogenic Escherichia coli

    • Pathogenic E. coli strains can be categorized based on elements that can elicit an immune response in animals, namely: O antigen, K antigen, H antigen, and F antigen in the lipopolysaccharide (LPS) molecules found in the outer membrane of the E. coli cell.
    • Structure of a lipopolysaccharide showing the O antigen, core region and lipid A.

  • Batch Culture of Bacteriophages

    • To enter a host cell, bacteriophages attach to specific receptors on the surface of bacteria, including lipopolysaccharides, teichoic acids, proteins, or even flagella.

  • Fusobacteria

    • However, in contrast to Bacteroides, Fusobacterium have a potent lipopolysaccharide that can function as an endotoxin.

  • Overview of Proteobacteria

    • All proteobacteria are Gram-negative, with an outer membrane mainly composed of lipopolysaccharides.

  • Polysaccharide Biosynthesis

    • UDP-glucose can also be used as a precursor of lipopolysaccharides, and peptidoglycan.

  • Lipid Biosynthesis

    • Many of the immune activating abilities of lipopolysaccharide can be attributed to the lipid A unit.

  • ABC Transporters

    • In bacterial efflux systems, certain substances that need to be extruded from the cell include surface components of the bacterial cell (e.g. capsular polysaccharides, lipopolysaccharides, and teichoic acid), proteins involved in bacterial pathogenesis (e.g. hemolysis, heme-binding protein, and alkaline protease), heme, hydrolytic enzymes, S-layer proteins, competence factors, toxins, antibiotics, bacteriocins, peptide antibiotics, drugs and siderophores.

  • Antimicrobial Peptides