The structure of the capsular polysaccharide of Shewanella oneidensis strain MR-4.
Carbohydr Res
; 340(10): 1750-3, 2005 Jul 25.
Article
in En
| MEDLINE
| ID: mdl-15936738
ABSTRACT
Capsular polysaccharides were extracted from Shewanella oneidensis strain MR-4, grown on two different culture media. The polysaccharides were analyzed using 1H and 13C NMR spectroscopy, and the following structure of the repeating unit was established [structure see text] where the residue of 4-amino-4,6-dideoxy-D-glucose (Qui4N) was substituted with different N-acyl groups depending on the growth media. All monosaccharides are present in the pyranose form. In the PS from cells grown on enriched medium (trypticase soy broth, TSB) aerobically it was N-acylated with 3-hydroxy-3-methylbutyrate (60%) or with 3-hydroxybutyrate (40%), whereas in the PS from cells grown on minimal medium (CDM) aerobically it was acylated mostly with 3-hydroxybutyrate (>90%).
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Database:
MEDLINE
Main subject:
Polysaccharides, Bacterial
/
Shewanella
Language:
En
Year:
2005
Type:
Article