Taxonomic group: bacteria / Proteobacteria
(Phylum: Proteobacteria)
Associated disease: infection due to Escherichia coli [ICD11:
XN6P4 
]
NCBI PubMed ID: 22475157Publication DOI: 10.1016/j.carres.2012.02.027Journal NLM ID: 0043535Publisher: Elsevier
Correspondence: C. Whitfield <cwhitfie
uoguelph.ca>
Institutions: Department of Molecular and Cellular Biology, University of Guelph, Guelph, Ontario, Canada N1G 2W1
The O-polysaccharide (O-PS; O-antigen) of bacterial lipopolysaccharides is made up of repeating units of one or more sugar residues and displays remarkable structural diversity. Despite the structural variations, there are only three strategies for O-PS assembly. The ATP-binding cassette (ABC)-transporter-dependent mechanism of O-PS biosynthesis is widespread. The Escherichia coli O9a and Klebsiella pneumoniae O2a antigens provide prototypes, which are distinguished by the fine details that link glycan polymerization and chain termination at the cytoplasmic face of the inner membrane to its export via the ABC transporter. Here, we describe the current understanding of these processes. Since glycoconjugate assembly complexes that utilize an ABC transporter-dependent pathway are widespread among the bacterial kingdom, the models described here are expected to extend beyond O-PS biosynthesis systems
Lipopolysaccharide, O-polysaccharide, ATP-binding cassette transporter, Escherichia coli O9a, Klebsiella pneumoniae O2a
Structure type: polymer chemical repeating unit
Location inside paper: p.19, table 1
The structure in this paper was incorrect:
Compound class: O-polysaccharide, O-antigen
Contained glycoepitopes: IEDB_115576,IEDB_130701,IEDB_136104,IEDB_140116,IEDB_141111,IEDB_141830,IEDB_143632,IEDB_144983,IEDB_152206,IEDB_164174,IEDB_164175,IEDB_164176,IEDB_174840,IEDB_241100,IEDB_76933,IEDB_983930,SB_136,SB_196,SB_197,SB_44,SB_67,SB_72
Biosynthesis and genetic data: genetic data
Comments, role: review; absolute configurations are from Ref [89, 91, 98, 99]; non-reducing terminal residue is Me-P-3-; published polymerization frame was shifted for conformity with other records.
3D data: 3D data
NCBI Taxonomy refs (TaxIDs): 1010797Reference(s) to other database(s): GTC:G54439QN, GlycomeDB:
25319
Show glycosyltransferases
There is only one chemically distinct structure:
Found 
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