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Structure of the Exopolysaccharide Secreted by a Marine Strain Vibrio alginolyticus.
- Source :
-
Marine drugs [Mar Drugs] 2018 May 15; Vol. 16 (5). Date of Electronic Publication: 2018 May 15. - Publication Year :
- 2018
-
Abstract
- Vibrio alginolyticus (CNCM I-4151) secretes an exopolysaccharide whose carbohydrate backbone is decorated with amino acids, likely conferring its properties that are appreciated in cosmetics. Here, the secreted polysaccharide of another strain of V. alginolyticus (CNCM I-5034) was characterized by chromatography and one- and two-dimensional NMR spectroscopy experiments. The structure was resolved and shows that the carbohydrate backbone is made of four residues: D-galactose (Gal), D-galacturonic acid (GalA) D-N-acetylglucosamine (GlcNAc) and D-glucuronic acid (GlcA), forming a tetrasaccharide repetition unit [→4)-β-d-GlcA-(1→3)-α-d-Gal-(1→3)-α-d-GalA-(1→3)-β-GlcNAc(1→]. GlcA is derivatized with a lactate group giving 'nosturonic acid', and GalA is decorated with the amino acid alanine.<br />Competing Interests: The authors declare no conflict of interest.
- Subjects :
- Acetylglucosamine chemistry
Amino Acids chemistry
Carbohydrate Sequence
Chromatography
Galactose chemistry
Magnetic Resonance Spectroscopy methods
Polysaccharides, Bacterial metabolism
Uronic Acids chemistry
Aquatic Organisms physiology
Polysaccharides, Bacterial chemistry
Vibrio alginolyticus physiology
Subjects
Details
- Language :
- English
- ISSN :
- 1660-3397
- Volume :
- 16
- Issue :
- 5
- Database :
- MEDLINE
- Journal :
- Marine drugs
- Publication Type :
- Academic Journal
- Accession number :
- 29762521
- Full Text :
- https://doi.org/10.3390/md16050164