all of the products appeared to have a composition and architecture typical of enterobacterial lps , but points of interest include the absence of phosphate residues from the core oligosaccharide , the presence of both l-glycero-d-mannoheptose and d-glycero-d-mannoheptose ( ratio usually about 4:1 ) , and the presence in lipid a of small amounts of fatty acids with odd numbers of carbon atoms ( mainly c13 ) in addition to tetradecanoic acid and 3-hydroxytetradecanoic acid .
C0023810
lps
C0023767
lipid a