The lipid portion of lipopolysaccharide is known as endotoxin because it can cause fever and shock.
Lipopolysaccharides (LPS), which are bacterial endotoxins, are big molecules made up of a lipid and a polysaccharide. The outer membrane of Gram-negative bacteria contains these molecules, which are made up of an O-antigen, an outer core, and an inner core that are all connected by covalent connections.
Although there are some which are released when the cell disintegrates that are unrelated to LPS, like the so-called delta-endotoxin proteins produced by Bacillus thuringiensis, the term "endotoxin" is still frequently used to refer to LPS in today's society.
Lipopolysaccharides can significantly affect a person's health, mostly via interacting with the immune system. LPS is a powerful immune system stimulator and pyrogen.
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