lipid A (E. coli) + a 1-hexadecanoyl-2-acyl-sn-glycero-3-phosphocholine = hepta-acyl lipid A (E. coli) + a 2-acyl-sn-glycero-3-phosphocholine
lipid a (e. coli) + a 1-hexadecanoyl-2-acyl-sn-glycero-3-phosphocholine = hepta-acyl lipid a (e. coli) + a 2-acyl-sn-glycero-3-phosphocholine