Immunoadsorbent combinations for the detection and diagnosis of group B streptococcus polysaccharide antigen, comprising an insoluble carrier, a capture agent having an affinity for specifically binding to the trirhamnose epitope of group B streptococcus antigen and having the formula α-L-Rhap(1->2)-α-L-Rhap(1->2)α-Rhap-1- wherein Rhap is rhamnose, and an antigen marker agent having an affinity for binding to monorhamnose epitope of group B streptococcus polysaccharide antigen of formula α-L-Rhap-1- when the group B streptococcus polysaccharide is bound to the carrier. An immunoassay method test kit and polyclonal antibody are also described.
用于检测和诊断B群链球菌
多糖抗原的免疫吸附组合物,包括不溶性载体、与B群链球菌抗原的三
鼠李糖表位特异性结合且具有式α-L-Rhap(1->2)-α-L-Rhap(1->2)α-Rhap-1-的捕获剂(其中Rhap为
鼠李糖)和与式α-L-Rhap-1-的B群链球菌
多糖抗原的单
鼠李糖表位特异性结合的抗原标记剂、和一种抗原标记剂,当 B 群链球菌
多糖与载体结合时,该标记剂与式 α-L-Rhap-1- 的 B 群链球菌
多糖抗原的单
鼠李糖表位具有亲和力。此外,还介绍了一种免疫测定法检测试剂盒和多克隆
抗体。