Conjugate having a formula (hapten)-(linker)-(reactive group)-(carrier) are described, wherein the hapten is a quinoxaline, a thiazole sulfonamide or a benzofurazan; the linker, for coupling a hapten to a reactive group, is a polymer comprising from 1 to 15 ethylene glycol units. A method for detecting a molecule of interest in a biological sample is also described, comprising contacting the biological sample with a hapten-antibody conjugate or a nucleic acid hapten conjugate comprising an antibody or nucleic acid linked to the hapten using a heterobifunctional PEG linker, the hapten being a quinoxaline, a thiazole sulfonamide or a benzofurazan; and detecting a signal generated by the hapten conjugate after treatment with an anti-hapten antibody having at least one detectable label. Kits with a hapten, the hapten being a quinoxaline, a thiazole sulfonamide or a benzofurazan and an anti-hapten antibody are described.
描述了具有式(杂合体)-(连接体)-(活性基团)-(载体)的共轭物,其中杂合体是
喹喔啉、
噻唑磺酰胺或
苯并呋喃;用于将杂合体与活性基团偶联的连接体是包含 1 至 15 个
乙二醇单元的聚合物。还描述了一种检测
生物样本中感兴趣分子的方法,该方法包括将
生物样本与合价素-
抗体共轭物或核酸合价素共轭物接触,该共轭物由
抗体或核酸组成,
抗体或核酸用杂官能团 P
EG 连接剂与合价素连接,合价素为
喹喔啉、
噻唑磺酰胺或
苯并呋喃;用具有至少一种可检测标记的抗链肽
抗体处理后,检测由链肽结合物产生的信号。本发明描述了含有合体素(合体素为
喹喔啉、
噻唑磺酰胺或
苯并呋喃)和抗合体素
抗体的试剂盒。