fraction l was rich in components typical of lipid a and the core region of lipopolysaccharide ( p , 3-hydroxy fatty acids , and 2-keto-3-deoxyoctonate ) and evidently was a lipopolysaccharide with a limited number of distal , repeating polysaccharide units , as judged by sds-polyacrylamide gel electrophoresis .
C0023767
lipid a
C0023810
lipopolysaccharide