Taxonomic group: bacteria / Firmicutes
(Phylum: Firmicutes)
Associated disease: infection due to Bacillus [ICD11:
XN9ZE 
]
The structure was elucidated in this paperNCBI PubMed ID: 10491103Journal NLM ID: 0107600Publisher: Oxford, UK: Blackwell Science Ltd. on behalf of the Federation of European Biochemical Societies
Correspondence: parrilli
unina.it
Institutions: Dipartimento di Chimica Organica e Biologica, Universita di Napoli Federico II, Italy, Department of Microbiology and Immunology, University of Leicester, UK
An exopolysaccharide obtained from an alkaliphilic bacterium closely related to Bacillus spp. was found to contain D-galactopyranuronic acid (GalpA), 2,4-diacetamido-2,4,6-trideoxy-D-glucopyranose (QuipNAc4NAc), 2-acetamido-2-deoxy D-mannopyranuronic acid (ManpNAcA) and one uncommon unit of D-galactopyranuronic acid with the carboxyl group amide-linked to glycine [GalpA(Gly)]. The polysaccharide was studied by one-dimensional and two-dimensional 1H NMR and 13C NMR spectroscopy both on native polysaccharide and on monosaccharides and oligosaccharides obtained from methanolysis and from anhydrous HF solvolysis. The following linear structure of the repeating unit was established: →3)-α-D-GalpA(Gly)-(1→4)-β-D-ManpNAcA-(1→4)-α-D-GalpA-(1→3)-α-D-QuipNAc4NAc-(1→. A preliminary phylogenetic assignment for the bacterium is also reported.
structure, determination, bacteria, exopolysaccharide, glycine, Bacillus, phylogenetic analysis, Structure determination, alkaliphilic
Structure type: polymer chemical repeating unit
Compound class: EPS
Methods: NMR-2D, FAB-MS, NMR, HF solvolysis, Smith degradation, MALDI-MS, methanolysis
Biosynthesis and genetic data: genetic data
Related record ID(s): 1329
NCBI Taxonomy refs (TaxIDs): 1386
Show glycosyltransferases
There is only one chemically distinct structure:
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