Taxonomic group: bacteria / Proteobacteria
(Phylum: Proteobacteria)
Associated disease: infection due to Acinetobacter baumannii [ICD11:
XN8LS 
]
NCBI PubMed ID: 14719362Publication DOI: 10.1016/S0065-2318(03)58007-6Publisher: Elsevier Inc.
Editors: Horton D
Correspondence: knirel
ioc.ac.ru
Institutions: N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, Russia, Research Center Borstel, Center for Medicine and Biosciences, Borstel, Germany, Karolinska Institute, Clinical Research Center, Huddinge University Hospital, Huddinge, Sweden
This chapter provides an overview of the chemistry of 5,7-diamino-3,5,7,9-tetradeoxynon-2-ulosonic acids in bacterial glycopolymers. Ald-2-ulosonic acids are the important components of natural glycoconjugates. Sialic acids—namely, N- and O-acyl derivatives of 5-amino-3,5-dideoxy-D-glycero-D-galacto-non-2-ulosonic acid (neuraminic acid, Neu), generally occur in glycoconjugates of vertebrates and play a significant role in their recognition, regulation, and protection. A deamino analogue of neuraminic acid—3-deoxy-D-glycero-D-galacto-non-2-ulosonic acid (Kdn)—has also been found in a variety of animal tissues. 3-Deoxy-D-manno-oct-2-ulosonic acid (Kdo) is an essential component of lipopolysaccharides (LPSs) of Gram-negative bacteria that functions to link the carbohydrate portion to the lipid moiety. In rare cases, Kdo in LPS is replaced with a 3-hydroxylated analogue—D-glycero-D-talo-oct-2-ulosonic acid. The chapter focuses on the occurrence and characterization of derivatives of 5,7-diamino-3,5,7,9-tetradeoxynon-2-ulosonic acids and presents experimental approaches that are used to identify them and to elucidate the structures of the bacterial polysaccharides that contain the nonulosonic acids. It also presents the recent data on the biosynthesis of these sugars and discusses their role in immune recognition.
Lipopolysaccharide, LPS, structure, polysaccharide, Bacterial polysaccharide, 5, 7-diamino-3, 7, higher sugar, 9-tetradeoxynonulosonic acid
Structure type: polymer chemical repeating unit
Location inside paper: p.380, fig.6, structure 23
Compound class: CPS, O-polysaccharide
Contained glycoepitopes: IEDB_137340,IEDB_141807,IEDB_151531
Comments, role: review
NCBI Taxonomy refs (TaxIDs): 470
Show glycosyltransferases
There is only one chemically distinct structure:
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