Taxonomic group: bacteria / Firmicutes
(Phylum: Firmicutes)
Associated disease: inflammatory bowel disease [ICD11:
DD70 
, ICD11:
DD71 ]
NCBI PubMed ID: 23787056Publication DOI: 10.1016/j.carres.2013.05.012Journal NLM ID: 0043535Publisher: Elsevier
Correspondence: sabina.gorska
iitd.pan.wroc.pl
Institutions: Ludwik Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wroclaw, Poland
The exopolysaccharide (EPS) structure from Lactobacillus johnsonii strain 151 isolated from the intestinal tract of mice was investigated. Sugar and methylation analyses together with 1H and 13C NMR spectroscopy, including two-dimensional 1H,1H COSY, TOCSY, NOESY, and 1H,13C HSQC, HMBC experiments, revealed that the repeating unit of the EPS is the linear pentasaccharide: →6)-α-D-Galp-(1→6)-α-D-Glcp-(1→3)-β-D-Galf-(1→3)-α-D-Glcp-(1→2)-β-D-Galf-(1→. The immunoreactivity of two structurally different exopolysaccharides isolated from L. johnsonii, 151 and 142 (Carbohydr. Res. 2010, 345, 108-114), was compared. Both EPSs differed in their reactivity with antisera. EPS from L. johnsonii 151 reacted with anti-Lactobacillus polyclonal sera against cells of five different strains, while EPS from L. johnsonii 142 was found to react only with its own antiserum. The broader specificity and higher reactivity of EPS from 151 strain than EPS from 142 strain were also observed with human sera. The physiological antibodies recognizing polysaccharide antigens were present in both adults and umbilical cord blood sera. A highly specific EPS 142 bearing strain was isolated from experimentally induced inflammatory bowel disease (IBD) mice, while a strain with EPS 151 isolated from the intestinal tract of healthy mice is characterized by a broad immune reactivity common structure.
NMR, Exopolysaccharide structure, Lactobacillus, immunoreactivity
Structure type: polymer chemical repeating unit
Location inside paper: p.149
Compound class: EPS
Contained glycoepitopes: IEDB_115013,IEDB_130645,IEDB_136095,IEDB_136906,IEDB_137472,IEDB_141794,IEDB_142488,IEDB_146664,IEDB_151528,IEDB_190606,IEDB_742246,IEDB_918313,IEDB_983931,SB_192,SB_7,SB_87
Methods: 13C NMR, 1H NMR, methylation, GLC-MS, NMR-2D, sugar analysis, ELISA, NMR-1D
Related record ID(s): 29524
NCBI Taxonomy refs (TaxIDs): 33959Reference(s) to other database(s): GTC:G02854JV, GlycomeDB:
37800
Show glycosyltransferases
There is only one chemically distinct structure:
Found 
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