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1. (Article ID: 667)
Guentas L, Pheulpin P, Michaud P, Heyraud A, Gey C, Courtois B, Courtois J
Structure of a polysaccharide from a Rhizobium species containing 2-deoxy-b-D-arabino-hexuronic acid
Carbohydrate Research 332(2) (2001)
167-173
The structure of the extracellular polysaccharide (EPS) produced by the Rhizobium sp. B strain isolated from atypical nodules on alfalfa has been determined using a combination of chemical and physical techniques (methylation analysis, high pH-anion exchange chromatography (HPAEC), mass spectrometry and 1-D and 2-D NMR spectroscopy). As opposed to the EPS from other strains of Rhizobium, the EPS from the sp. B strain contains D-Glc together with L-Rha and 2-deoxy-D-arabino-hexuronic acid. It is a polymer of a repeating unit having the following structure: →4)-β-D-Glcp-(1→4)-α-L-Rhap-(1→3)-β-D-Glcp-(1→4)-2-deoxy-β-D-GlcpA-(1→. The polysaccharide also contains 0.6 O-acetyl groups per sugar which have not been located.
structure, polysaccharide, acid, Rhizobia, Rhizobium, structural analysis, extracellular polysaccharide, species, 2-deoxy-arabino-D-hexuronic acid, Rhizobium sp.
NCBI PubMed ID: 11434374Journal NLM ID: 0043535Publisher: Elsevier
Correspondence: josiane.courtois
iut.u-picardie.fr
Institutions: Laboratoire des Polysaccharides Microbiens et Vegetaux, Departement de Genie Biologique, Institut Universitaire de Technologie, Universite de Picardie Jules Verne, Avenue des Facultes, F-80025 Amiens, France, Centre de Recherches sur les Macromolecules Vegetales, UPR CNRS 5301, BP 53 F- 38041, Grenoble, France
Methods: methylation, NMR-2D, partial acid hydrolysis, NMR, carboxyl reduction, MS
The publication contains the following compound(s):
- Compound ID: 2062
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-4)-b-D-Glcp-(1-4)-a-L-Rhap-(1-3)-b-D-Glcp-(1-4)-b-D-2daraHexpA-(1- |
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Structure type: polymer chemical repeating unit
Compound class: EPS
Reference(s) to other database(s): GTC:G56050EN, GlycomeDB:
25195
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2. (Article ID: 990)
Misra AK, Roy N
Synthesis of the tetrasaccharide repeating unit of the antigen from Klebsiella type 2
Carbohydrate Research 278 (1995)
103-111
synthesis, antigen, oligosaccharide, tetrasaccharide, repeating unit, type, Klebsiella
Journal NLM ID: 0043535Publisher: Elsevier
Institutions: Department of Biological Chemistry, Indian Association for the Cultivation of Sciences, Calcutta, India
The publication contains the following compound(s):
- Compound ID: 2821
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a-D-GlcpA6Me-(1-3)-+
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a-D-Glcp-(1-3)-b-D-Glcp-(1-4)-b-D-Manp-(1-1)-Me |
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Structure type: oligomer
Reference(s) to other database(s): GlycomeDB:
25977
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