Abstract
The O-specific polysaccharide was isolated by mild acid degradation of the lipopolysaccharide of the marine bacterium Shewanella fidelis type strain KMM 3582T and studied by sugar analysis along with 1H and 13C NMR spectroscopy including one-dimensional NOE in difference mode and two-dimensional experiments. The polysaccharide was found to consist of linear tetrasaccharide repeating units containing Nε-[(S)-1- carboxyethyl]-Nα-(D-galacturonoyl)-L-lysine and having the following structure: The amide of D-galacturonic acid with Nε- [(S)-1-carboxyethyl]-L-lysine ('alaninolysine', 2S,8S-AlaLys) was found for the first time in nature as a component of the O-specific polysaccharide of Providencia rustigianii O14 (Carbohydr. Res. 2003, 338, 1009-1016).
| Original language | English |
|---|---|
| Pages (from-to) | 1655-1661 |
| Number of pages | 7 |
| Journal | Carbohydrate Research |
| Volume | 339 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - 22 Jun 2004 |
Keywords
- Alaninolysine
- Bacterial polysaccharide
- Lipopolysaccharide
- Marine bacterium
- NMR spectroscopy
- Shewanella fidelis
- Structure
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