Taxonomic group: bacteria / Proteobacteria
(Phylum: Proteobacteria)
Associated disease: infection due to Escherichia coli [ICD11:
XN6P4 
]
NCBI PubMed ID: 19882123Publication DOI: 10.1007/978-1-60761-454-8_7Publisher: Totowa, NJ: Humana Press
Editors: Holst O, Walker JM, Beck A
Institutions: Departments of Chemistry and Biochemistry, The Ohio State University, Columbus, OH, USA
Polysaccharides constitute a major component of the bacterial cell surface. They play critical roles in the interactions between bacteria and the host environments, and consequently contribute to the virulence of pathogens. The lipopolysaccharide (LPS) found on the surface of gram-negative bacteria consists of three parts: lipid A, a core oligosaccharide, and the O antigen. The O antigen is the outermost part of LPS and contains multiple oligosaccharide repeating units. Biosynthesis of the O-repeating unit is the first committed step in LPS biosynthesis. We sequenced and characterized the O-antigen biosynthetic gene cluster of Escherichia coli serotype O86. Four glycosyltransferases encoded by the genes within the cluster were cloned and overexpressed. In vitro reconstitution of the O-repeating unit of E. coli 086 was achieved via using these enzymes.
Lipopolysaccharide, O antigen, Escherichia coli, glycosyltransferase, O-Repeating unit
Structure type: suggested polymer biological repeating unit
Location inside paper: p.95, fig.7.1
Compound class: O-polysaccharide, O-antigen
Contained glycoepitopes: IEDB_115013,IEDB_130645,IEDB_130648,IEDB_134627,IEDB_136044,IEDB_136045,IEDB_136906,IEDB_137472,IEDB_137473,IEDB_1391961,IEDB_1391963,IEDB_140125,IEDB_141582,IEDB_141584,IEDB_141794,IEDB_142489,IEDB_143260,IEDB_144562,IEDB_149558,IEDB_150766,IEDB_150948,IEDB_150952,IEDB_151528,IEDB_152212,IEDB_152214,IEDB_153207,IEDB_153553,IEDB_174333,IEDB_190606,IEDB_241096,IEDB_461710,IEDB_461718,IEDB_461719,IEDB_885822,IEDB_918314,SB_148,SB_154,SB_165,SB_166,SB_187,SB_195,SB_23,SB_24,SB_7,SB_8,SB_86,SB_87,SB_88
Methods: PCR, DNA sequencing, ESI-MS, genetic methods, biochemical methods, LC-MS
Biosynthesis and genetic data: genetic data, biochemical data
Synthetic data: chemical and enzymatic
Related record ID(s): 10035, 10195, 10548, 20043, 20120, 20508, 20667, 25663, 25664, 25665, 25666, 25667, 108706, 115586
NCBI Taxonomy refs (TaxIDs): 2162909Reference(s) to other database(s): GTC:G75734HT, GlycomeDB:
3571
Show glycosyltransferases
There is only one chemically distinct structure:
Found 
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