while the exact chemical structure of the component of bacterial endotoxin responsible for interferon release has not yet been elucidated , it is clear that the lipid portion of the lipopolysaccharide , rather than the o-specific polysaccharide side chains or the core polysaccharide , is the active moiety .
C0023810
lipopolysaccharide
C0069180
o-specific polysaccharide