Novel labeling reagents useful for the chemical attachment of nitrophenyl derivative ligands to DNA probes
申请人:AMOCO CORPORATION
公开号:EP0485155A1
公开(公告)日:1992-05-13
This invention discloses methods and compounds for covalently linking nitro-, dinitro- and trinitrophenyl to DNA and the resulting nitro-, dinitro-, and trinitrophenyl labeled DNA reagents. Reagents for the in situ detection of a chromosome or a region of a chromosome are disclosed. These reagents include a multiplicity of DNA sequences that are complementary to different portions of the chromosome or chromosome region to be detected. Multiple nitro-, dinitro- or trinitrophenyl labels are covalently linked to the DNA sequences by means of an amino acid linking group. These labeled reagents are contacted under hybridizing conditions with the chromosome or chromosome region of interest. Any binding of the reagent with the chromosome or chromosome region of interest may then be detected by immunological techniques.
本发明公开了硝基、二硝基和三硝基苯基与 DNA 共价连接的方法和化合物,以及由此产生的硝基、二硝基和三硝基苯基标记 DNA 试剂。公开了用于原位检测染色体或染色体区域的试剂。这些试剂包括与要检测的染色体或染色体区域的不同部分互补的多种 DNA 序列。多个硝基、二硝基或三硝基苯基标签通过氨基酸连接基团与 DNA 序列共价连接。这些标记试剂在杂交条件下与染色体或相关染色体区域接触。然后可通过免疫学技术检测试剂与染色体或染色体相关区域的任何结合。