... that the OSs from the wild-type strain consisted of terminal-, 2-, 4-, and 3,4,6-linked glucosyl residues, terminal- and 4-linkedgalactosyl residues, and a terminal-linked N-acetylglu-cosaminosyl ... mode, and all ions represented as deprotonated [M-H]–ions. The sourceof the ions was as indicated in the structure shown in the inset. The m ⁄ z 917.4 and 797.4 are due to sodiated and dehydratedforms, ... moieties: a lipid A and a coreoligosaccharide (OS). The core OS can be dissected into a linker and threeOS chains. To gain an insight into the biological activities of the LOSmolecules of...