Labeling of DNA probes with a photoactivatable hapten.

Labeling of DNA probes with a photoactivatable hapten.
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用光激活半抗原标记 DNA 探针。

DOI:
10.1016/0003-2697(89)90072-9
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发表时间:
1989
影响因子:
2.9
通讯作者:
Manak,MM
Manak,MM
中科院分区:
生物学4区
文献类型:
--
作者:
Keller,GH;Huang,DP;Manak,MM

文献摘要

被引文献

相似文献

使用市售双功能连接臂试剂和氨基衍生的 2,4-二硝基苯基 (DNP) 制备了用于将半抗原引入 DNA 探针的光活化试剂。使用普通太阳灯,所得化合物(photo-DNP)可有效地与 DNA 偶联。在最佳条件下,每 1000 个碱基大约有 7-23 个 DNP 分子掺入 DNA 中。杂交实验表明,通过与光 DNP 标记探针的滤光片杂交和免疫化学检测,可以检测到少至 1.5 × 105 拷贝的目标 DNA。
A photoactivatable reagent for introducing haptens onto DNA probes has been prepared using a commercially available bifunctional linker arm reagent and amino-derivatized 2,4-dinitrophenyl (DNP). The resulting compound (photo-DNP) couples efficiently to DNA using an ordinary sunlamp. Under optimum conditions, about 7–23 DNP molecules per 1000 bases are incorporated into the DNA. Hybridization experiments demonstrate that as little as 1.5 × 105copies of target DNA can be detected by filter hybridization with a photo-DNP-labeled probe and immunochemical detection.