Abstract
This mini-review gives a structural view on the lipopolysaccharides (LPSs), the endotoxin from Gram negative bacteria, paying attention on the features that are relevant for their activity as elicitors of the innate immune system of humans, animals and plants.
Keywords: Endotoxin, innate immunity, lipid A, LPS, PAMP, PRR, Gram negative bacteria, immune system, lipid bilayer, hydrophilic compounds