Structure of the glycerol phosphate-containing O-specific polysaccharide and serological studies on the lipopolysaccharides of Citrobacter werkmanii PCM 1548 and PCM 1549 (serogroup O14)

Structure of the glycerol phosphate-containing O-specific polysaccharide and serological studies on the lipopolysaccharides of Citrobacter werkmanii PCM 1548 and PCM 1549 (serogroup O14)
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DOI:
10.1111/j.1574-695x.2008.00477.x
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发表时间:
2008-11-01
影响因子:
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通讯作者:
Knirel, Yuriy A.
Knirel, Yuriy A.
中科院分区:
其他
文献类型:
--
作者:
Katzenellenbogen, Ewa;Kocharova, Nina A.;Knirel, Yuriy A.

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通过对柠檬酸杆菌Werkmanii PCM的脂多糖的温和酸水解获得O特异性多糖,发现基于D-葡萄糖,D-葡萄糖,D-葡萄糖胺和甘油1-磷酸2:2:2:2:2:2:2:2:2:2:2:2:1:1:1:1:1:1:1:1:1:1:1:1:1:1:1:1:1:1:1:1:1:1:1:1:1:1:1:1:1:1:1:1:1:1:1:1:1:1:1:1:1:1:1:1:2:2:2:2:2:2:2:2:2:2:2:2:1:光谱数据数据,已经确定,来自两种菌株的O特异性多糖具有相同的四糖重复单元,具有3,6-二取代的GLCNAC,然后在GLC和GlcNAC的分支残基上携带的2,4-脱亚取代的GLC残基在GLC和GLCNAC的分支残基上,分别在定位上为6和2。甘油1-磷酸盐与链GLC的位置6相关。除侧链GLC外,所有糖均具有β构型。血清学研究表明,C. werkmanii PCM 1548和PCM 1549的脂多糖的密切相关性,均属于Serrogroup O14。在免疫印迹中,抗C。 Werkmanii PCM 1548血清与柠檬酸酸酸酯PCM 1550(血清群O16)和Hafnia Alvei PCM的O-杆菌酸带和HAFNIA ALVEI PCM 1207的O-杆菌酸带显示没有交叉反应性。
The O-specific polysaccharide was obtained by mild acid hydrolysis of the lipopolysaccharide of Citrobacter werkmanii PCM 1548 and PCM 1549 (serogroup O14) and found to contain D-glucose, D-glucosamine and glycerol-1-phosphate in molar ratios 2 : 2 : 1. Based on methylation analysis and H-1 and C-13 nuclear magnetic resonance spectroscopy data, it was established that the O-specific polysaccharides from both strains have the identical branched tetrasaccharide repeating unit with 3,6-disubstituted GlcNAc, followed by 2,4-disubstituted Glc residues carrying at the branching points lateral residues of Glc and GlcNAc at positions 6 and 2, respectively. Glycerol-1-phosphate is linked to position 6 of the chain Glc. All sugars have a beta configuration, except for the side-chain Glc, which is alpha. Serological studies revealed a close relatedness of the lipopolysaccharides of C. werkmanii PCM 1548 and PCM 1549, both belonging to serogroup O14. In immunoblotting, anti-C. werkmanii PCM 1548 serum showed no cross-reactivity with the O-polysaccharide bands of the lipopolysaccharides of Citrobacter youngae PCM 1550 (serogroup O16) and Hafnia alvei PCM 1207, also containing a lateral glycerol phosphate residue.