申请人:Enzo Diagnostics, Inc.
公开号:US05384241A1
公开(公告)日:1995-01-24
Disclosed is an assay system including a compound comprising an analyte-specific moiety having substituted thereon a polymer comprising plurality of self-quenching emitter moieties and a plurality of isocharged functionality separating the emitter moieties. The present invention provides compounds that overcome the undesirable effects of self-quenching when multiple emitter moieties are used for labelling of assay reagents. Avoidance of this self-quenching phenomenon by the compounds of the invention makes it possible to introduce a more concentrated degree of labelling on to analyte-specific molecules such as oligo nucleotide probes, antibodies and other specific binding proteins and analyte-specific polysaccharides. Therefor, it is possible to effect greater assay sensitivity because the number of labels per recognition molecule(analyte-specific moiety) can be increased beyond the point previously possible without the reduction in signal caused by self-quenching.
本发明公开了一种测定系统,包括一种化合物,该化合物包含具有置换在其上的聚合物的分析物特异性基团,该聚合物包括多个自熄灭发射物基团和多个等电功能基团,分离了发射物基团。本发明提供了一种化合物,克服了在标记测定试剂时使用多个发射物基团时自熄灭的不良影响。通过本发明化合物避免了这种自熄灭现象,使得可以向特异性分子(如寡核苷酸探针、抗体和其他特异性结合蛋白以及特异性多糖)引入更高浓度的标记,从而可以实现更高的测定灵敏度,因为每个识别分子(分析物特异性基团)的标记数可以增加到以前不可能的点,而不会因自熄灭而减少信号。