Serological classification and epitope specificity of Proteus vulgaris TG 251 from Proteus serogroup O65

被引:5
|
作者
Zych, Krystyna
Kolodziejska, Katarzyna
Drzewiecka, Dominika
Perepelov, Andrey V.
Knirel, Yuriy A.
Sidorczyk, Zygmunt
机构
[1] Univ Lodz, Inst Microbiol & Immunol, Dept Gen Microbiol, PL-90237 Lodz, Poland
[2] Russian Acad Sci, ND Zelinsky Inst Organ Chem, Moscow 109017, Russia
关键词
Proteus; lipopolysaccharide; O-serogroup; epitope; serological classification;
D O I
10.1007/s00005-007-0020-z
中图分类号
R392 [医学免疫学]; Q939.91 [免疫学];
学科分类号
100102 ;
摘要
Introductions: Proteus rods are currently subdivided into five named species, i.e. Proteus mirabilis, P. vulgaris, P. penneri, P. hauseri, and P. myxofaciens, and three unnamed Proteus genomospecies 4 to 6. Based on the serospecificity of the lipopolysaccharide (LPS; O-antigen), strains of P. mirabilis and P. vulgaris were divided into 49 O-serogroups and 11 additional O-serogroups were proposed later. About 15 further O-serogroups have been proposed for the third medically important species, P. penneri. Here the serological classification of P. vulgaris strain TG 251, which does not belong to these serogroups, is reported. Serological investigations also allowed characterization of the epitope specificity of its LPS. Materials and methods: Purified LPSs from five Proteus strains were used as antigens in enzyme immunosorbent assay (EIA), SDS/PAGE, and Western blot and alkali-treated LPSs in the passive immunohemolysis (PIH) test, inhibition of PIH and EIA, and absorption of the rabbit polyclonal O-antisera with the respective LPS. Results: The serological studies of P. vulgaris TG 251 LPS indicated the identity of its O-polysaccharide with that of P. penneri O65. The antibody specificities of P. vulgaris TG 251 and P. penneri O65 O-antisera, were described. Conclusions: P. vulgaris TG 251 was classified to the Proteus O65 serogroup. Two disaccharide-associated epitopes present in P. vulgaris TG 251 and P. penneri O65 LPSs are suggested to be responsible for cross-reactions with three heterologous Proteus strains.
引用
收藏
页码:187 / 191
页数:5
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