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  • Blackwell Publishing Ltd  (3)
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  • 1
    Electronic Resource
    Electronic Resource
    Structure of the O-polysaccharide and serological studies of the lipopolysaccharide of Proteus penneri 60 classified into a new Proteus serogroup O70 (2005)
    Oxford, UK : Blackwell Publishing Ltd
    FEMS immunology and medical microbiology 43 (2005), S. 0 
    Details
    ISSN: 1574-695X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Medicine
    Notes: An alkali-treated lipopolysaccharide of Proteus penneri strain 60 was studied by chemical analyses and 1H, 13C and 31P NMR spectroscopy, and the following structure of the linear pentasaccharide–phosphate repeating unit of the O-polysaccharide was established:〈displayedItem type="mathematics" xml:id="mu1" numbered="no"〉〈mediaResource alt="image" href="urn:x-wiley:09288244:FIM351:FIM_351_mu1"/〉 Rabbit polyclonal O-antiserum against P. penneri 60 reacted with both core and O-polysaccharide moieties of the homologous LPS. Based on the unique O-polysaccharide structure and serological data, we propose to classify P. penneri 60 into a new, separate Proteus serogroup O70. A weak cross-reactivity of P. penneri 60 O-antiserum with the lipopolysaccharide of Proteus vulgaris O8, O15 and O19 was observed and discussed in view of the chemical structures of the O-polysaccharides.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/j.femsim.2004.09.004
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  • 2
    Electronic Resource
    Electronic Resource
    Structure and serological studies of the O-polysaccharide of Proteus penneri 75 (2005)
    Oxford, UK : Blackwell Publishing Ltd
    FEMS immunology and medical microbiology 43 (2005), S. 0 
    Details
    ISSN: 1574-695X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Medicine
    Notes: The O-specific polysaccharide of the lipopolysaccharide of Proteus penneri strain 75 consists of tetrasaccharide-ribitol phosphate repeating units and resembles ribitol teichoic acids of Gram-positive bacteria. The following structure of the polysaccharide was elucidated by chemical methods and 1H and 13C NMR spectroscopy: 〈inlineGraphic alt="inline image" href="urn:x-wiley:09288244:FIM141:FIM_141_mu1" location="equation/FIM_141_mu1.gif"/〉 where Rib-ol is ribitol. Serological studies with polyclonal antisera showed that the same structure of the O-polysaccharide occurred in two strains: P. penneri 75 and 128. A similar structure has been established earlier for the O-polysaccharide of P. penneri 103 [Drzewiecka, D., et al., Carbohydr. Res. 337 (2002) 1535–1540]. On the basis of complex serological investigations with use of two polyclonal P. penneri 75 and 103 O-antisera, five strains could be classified into Proteus O73 serogroup: P. penneri 48, 75, 90, 103 and 128, two of which (P. penneri 75 and 128) should be subdivided into subgroup 73a, 73b and three others (P. penneri 48, 90 and 103) into subgroup 73a, 73c. Epitopes responsible for the cross-reactivity of P. penneri O73 strains and a related strain of P. mirabilis O20 were tentatively defined.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/j.femsim.2004.07.011
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  • 3
    Electronic Resource
    Electronic Resource
    Structure of the O-polysaccharide leads to classification of Proteus penneri 31 in Proteus serogroup O19 (2003)
    Oxford, UK : Blackwell Publishing Ltd
    FEMS immunology and medical microbiology 39 (2003), S. 0 
    Details
    ISSN: 1574-695X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Medicine
    Notes: O-polysaccharide was obtained by mild acid degradation of the lipopolysaccharide (LPS) of Proteus penneri strain 31. Sugar and methylation analyses along with NMR spectroscopic studies, including 2D 1H,1H COSY, TOCSY, ROESY, 1H,13C and 1H,31P HMQC experiments, demonstrated the following structure of the polysaccharide:〈displayedItem type="mathematics" xml:id="mu1" numbered="no"〉〈mediaResource alt="image" href="urn:x-wiley:09288244:FIM73:FIM_73_mu1"/〉where FucNAc is 2-acetamido-2,6-dideoxygalactose and EtnP is 2-aminoethyl phosphate. The polysaccharide studied has the same carbohydrate backbone as the O-polysaccharide of Proteus vulgaris O19. Based on this finding and close serological relatedness of the LPS of the two strains, it is proposed to classify P. penneri 31 in Proteus serogroup O19 as an additional subgroup. In contrast, d-GlcNAc6P Etn and α-l-FucNAc-(1→3)-d-GlcNAc shared with a number of other Proteus O-polysaccharides could not provide any significant cross-reactivity of the corresponding LPS with rabbit polyclonal O-antiserum against P. penneri 31.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/S0928-8244(03)00205-0
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