mass spectra were obtained for methylated monophosphoryl lipid a from neisseria gonorrhoeae and rhodopseudomonas sphaeroides , for diphosphoryl lipid a from escherichia coli and for the intact lps from the re mutant of e. coli consisting of triphosphoryl lipid a and two kdo ( 2-keto-3-deoxyoctonate ) units .
C0023810
lps
C0023767
lipid a