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- Title
Liquid Chromatography/Electrospray Ionization Tandem Mass Spectrometry‐based Structural Analysis of Deacylated Lipooligosaccharides From Escherichia coli.
- Authors
Choi, Yu Ri; Kim, Kwang Sung; Bandu, Raju; Kim, Hyoseon; Lee, Jae Eun; Shin, Byong‐Kyu; Cho, Yang Je; Park, Jong Moon; Lee, Hookeun; Kim, Kwang Pyo
- Abstract
Deacylated lipooligosaccharides (dLOSs) were developed as human vaccine adjuvants. The dLOSs have significant immune activities and markedly lower toxicities than their precursors, lipopolysaccharides (LPSs). In this study, we developed a novel liquid chromatography mass spectrometry (LC–MS) method for characterization of the dLOSs. The structural identification and characterization of the dLOSs were carried out using electrospray ionization tandem mass spectrometric experiments. Finally, we propose the most likely structure of the dLOSs as being composed of a diacyl form of lipid A with seven sugars, 3 HEP + 2 KDO + 1 GlcN + 1 Glc.
- Subjects
LIQUID chromatography; ELECTROSPRAY ionization mass spectrometry; ESCHERICHIA coli; MASS spectrometry; LIPOPOLYSACCHARIDES; LIPIDS
- Publication
Bulletin of the Korean Chemical Society, 2020, Vol 41, Issue 4, p454
- ISSN
0253-2964
- Publication type
Article
- DOI
10.1002/bkcs.11993