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1. (Article ID: 541)
Kondakova AN, Fudala R, Bednarska K, Senchenkova SN, Knirel YA, Kaca W
Structure of the neutral O-polysaccharide and biological activities of the lipopolysaccharide of Proteus mirabilis O20
Carbohydrate Research 339(3) (2004)
623-628
Mild acid degradation of the lipopolysaccharide (LPS) of Proteus mirabilis O20 resulted in depolymerisation of the O-polysaccharide to give a repeating-unit pentasaccharide. A polysaccharide was obtained by O-deacylation of the LPS followed by nitrous acid deamination. The derived pentasaccharide and polysaccharide were studied by NMR spectroscopy, including 2D 1H,1H COSY, TOCSY, ROESY, 1H,13C HMQC and HMQC-TOSCY experiments, along with chemical methods, and the following structure of the repeating unit of the O-polysaccharide was established: [Carbohydrate structure: see text]. As opposite to most other P. mirabilis O-polysaccharides studied, that of P. mirabilis O20 is neutral. A week serological cross-reactivity was observed between anti-P. mirabilis O20 serum and LPS of a number of Proteus serogroups with known O-polysaccharide structure. The ability of LPS of P. mirabilis O20 to activate the serine protease cascade was tested in Limulus amoebocyte lysate and in human blood plasma and compared with that of P. mirabilis O14a,14c having an acidic O-polysaccharide. The LPS of P. mirabilis O20 was found to be less active in both assays than the LPS of P. mirabilis O14a,14c and, therefore, the structurally variable O-polysaccharide may influenced the biological activity of the conserved lipid A moiety of the LPS.
Lipopolysaccharide, Proteus mirabilis, O-Polysaccharide structure, Serological cross-reactivity, Blood serum
NCBI PubMed ID: 15013399Publication DOI: 10.1016/j.carres.2003.11.016Journal NLM ID: 0043535Publisher: Elsevier
Correspondence: rafalfu
wp.pl
Institutions: N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, Russia, Institute of Microbiology and Immunology, University of Lodz,90-237 Lodz, Poland, Center for Medical Biology and Microbiology, Polish Academy of Sciences,93-232 Lodz, Poland, Institute of Microbiology, Swietokrzyska Academy, Kielce 25-406, Poland
Methods: methylation, NMR-2D, NMR, sugar analysis
The publication contains the following compound(s):
- Compound ID: 311
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a-D-Glcp-(1-4)-+ Cho-(1--P--4)--+
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-6)-b-D-Glcp-(1-3)-b-D-Galp-(1-3)-b-D-GlcpNAc-(1-3)-a-D-GlcpNAc-(1-P- |
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Structure type: polymer chemical repeating unit
Compound class: O-polysaccharide, O-antigen
- Compound ID: 1607
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Mal-(1-4)-b-D-Quip4N-(1-6)-+
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-3)-b-D-GlcpNAc-(1-2)-b-D-Galp-(1-4)-b-D-Glcp-(1- |
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Structure type: polymer chemical repeating unit
Compound class: O-polysaccharide
- Compound ID: 1752
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a-D-Glcp-(1-2)-b-D-Galp-(1-4)-+
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-3)-a-D-GlcpNAc-(1-4)-b-D-Glcp-(1-3)-b-D-GlcpNAc-(1- |
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Structure type: polymer chemical repeating unit
Compound class: O-polysaccharide, O-antigen
Reference(s) to other database(s): GTC:G10235UA, GlycomeDB:
27451
- Compound ID: 1753
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a-D-Glcp-(1-2)-b-D-Galp-(1-4)-a-D-GlcpNAc-(1-4)-b-D-Glcp-(1-3)-b-D-GlcpNAc |
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Structure type: oligomer
Compound class: O-polysaccharide
Reference(s) to other database(s): GTC:G47003GQ, GlycomeDB:
27532
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2. (Article ID: 3203)
Wang Z, Li J, Vinogradov E, Altman E
Structural studies of the core region of Aeromonas salmonicida subsp. salmonicida lipopolysaccharide
Carbohydrate Research 341(1) (2006)
109-117
The core oligosaccharide structure of the in vivo derived rough phenotype of Aeromonas salmonicida subsp. salmonicida was investigated by a combination of compositional, methylation, CE-MS and one- and two-dimensional NMR analyses and established as the following: where R=α-D-Galp-(1→4)-β-D-GalpNAc-(1→ or α-D-Galp-(1→ (approx. ratio 4:3). Comparative CE-MS analysis of A. salmonicida subsp. salmonicida core oligosaccharides from strains A449, 80204-1 and an in vivo rough isolate confirmed that the structure of the core oligosaccharide was conserved among different isolates of A. salmonicida.
Lipopolysaccharide, NMR, core oligosaccharide, Aeromonas salmonicida, CE-MS
NCBI PubMed ID: 16297894Publication DOI: 10.1016/j.carres.2005.10.017Journal NLM ID: 0043535Publisher: Elsevier
Correspondence: Eleonora Altman
nrc-cnrc.gc.ca>
Institutions: Institute for Biological Sciences, National Research Council of Canada, Ottawa, Ontario, Canada K1A 0R6
Methods: 13C NMR, 1H NMR, methylation, GLC-MS, NMR-2D, SDS-PAGE, 31P NMR, mild acid hydrolysis, alkaline degradation, composition analysis, CE-MS
The publication contains the following compound(s):
- Compound ID: 7012
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a-D-Galp-(1-4)-L-gro-a-D-manHepp-(1-6)-b-D-Glcp-(1-4)-+
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a-D-GlcpN-(1-7)-L-gro-a-D-manHepp-(1-2)-L-gro-a-D-manHepp-(1-3)-L-gro-a-D-manHepp-(1-5)-a-Kdo
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L-gro-a-D-manHepp-(1-6)-+ |
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Structure type: oligomer
Compound class: core oligosaccharide
Reference(s) to other database(s): GTC:G47828HG, GlycomeDB:
27907
- Compound ID: 7017
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a-D-GlcpN-(1-7)-L-gro-a-D-manHepp-(1-2)-L-gro-a-D-manHepp-(1-3)-+ P-4)-+ P-4)-+
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a-D-Galp-(1-4)-b-D-GalpN-(1-4)-L-gro-a-D-manHepp-(1-6)-b-D-Glcp-(1-4)-L-gro-a-D-manHepp-(1-5)-a-Kdop-(2-6)-b-D-GlcpN-(1-6)-a-D-GlcpN-(1-P
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L-gro-a-D-manHepp-(1-6)-+ |
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Structure type: oligomer
Trivial name: glycoform-OH-1
Compound class: core oligosaccharide
Reference(s) to other database(s): GlycomeDB:
28151
- Compound ID: 7013
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a-D-GlcpN-(1-7)-L-gro-a-D-manHepp-(1-2)-L-gro-a-D-manHepp-(1-3)-+
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a-D-Galp-(1-4)-b-D-GalpNAc-(1-4)-L-gro-a-D-manHepp-(1-6)-b-D-Glcp-(1-4)-L-gro-a-D-manHepp-(1-5)-a-Kdo
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L-gro-a-D-manHepp-(1-6)-+ |
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Structure type: oligomer
Compound class: core oligosaccharide
Reference(s) to other database(s): GTC:G97567DV, GlycomeDB:
28147
- Compound ID: 7014
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a-D-GlcpN-(1-7)-L-gro-a-D-manHepp-(1-2)-L-gro-a-D-manHepp-(1-3)-+
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a-D-Galp-(1-4)-b-D-GalpN-(1-4)-L-gro-a-D-manHepp-(1-6)-b-D-Glcp-(1-4)-L-gro-a-D-manHepp-(1-5)-a-Kdo
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L-gro-a-D-manHepp-(1-6)-+ |
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Structure type: oligomer
Compound class: core oligosaccharide
Reference(s) to other database(s): GTC:G32344KH, GlycomeDB:
28148
- Compound ID: 7015
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a-D-Galp-(1-4)-L-gro-a-D-manHepp-(1-6)-b-D-Glcp-(1-4)-+ P-4)-+ P-4)-+
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a-D-GlcpN-(1-7)-L-gro-a-D-manHepp-(1-2)-L-gro-a-D-manHepp-(1-3)-L-gro-a-D-manHepp-(1-5)-a-Kdop-(2-6)-b-D-GlcpN-(1-6)-a-D-GlcpN-(1-P
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L-gro-a-D-manHepp-(1-6)-+ |
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Structure type: oligomer
Compound class: core oligosaccharide
Reference(s) to other database(s): GlycomeDB:
28149
- Compound ID: 7016
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a-D-GlcpN-(1-7)-L-gro-a-D-manHepp-(1-2)-L-gro-a-D-manHepp-(1-3)-+ P-4)-+ P-4)-+
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a-D-Galp-(1-4)-b-D-GalpNAc-(1-4)-L-gro-a-D-manHepp-(1-6)-b-D-Glcp-(1-4)-L-gro-a-D-manHepp-(1-5)-a-Kdop-(2-6)-b-D-GlcpN-(1-6)-a-D-GlcpN-(1-P
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L-gro-a-D-manHepp-(1-6)-+ |
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Structure type: oligomer
Compound class: core oligosaccharide
Reference(s) to other database(s): GlycomeDB:
28150
- Compound ID: 7018
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a-D-GlcpN-(1-7)-L-gro-a-D-manHepp-(1-2)-L-gro-a-D-manHepp-(1-3)-+
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b-D-Galp-(1-4)-+ | P-4)-+
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D-gro-a-D-manHepp-(1-6)-D-gro-a-D-manHepp-(1-6)-a-D-Glcp-(1-4)-L-gro-a-D-manHepp-(1-5)-a-Kdop-(2--/lipid A/
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L-gro-a-D-manHepp-(1-6)-+ |
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Structure type: oligomer
Aglycon: lipid A
Compound class: core oligosaccharide
Reference(s) to other database(s): GTC:G76206IA, GlycomeDB:
28152
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