The invention relates to a process for the modification of double-stranded nucleic acids with groups that allow a covalent binding of these nucleic acids to surfaces on supports or other substrates. In a further embodiment, the invention relates to a modified nucleic acid obtainable according to the method or process just mentioned. In a further embodiment, the present invention relates to a support carrying a covalently bonded modified nucleic acid, especially a DNA or RNA, where the nucleic acid is bonded via one or more modified nucleosides to the surface of said support In a further embodiment, the invention relates to a method of manufacturing a support carrying a covalently bonded modified nucleic acid, especially a DNA or RNA, where the nucleic acid is bonded via one or more modified nudeosides to the surface of said support. Furthermore, the invention relates to a matrix that may be gel-like and that is obtainable by cross-linking of a modified nucleid acid according to the invention with a cross-linker. The invention also relates to a method of manufacture of such a matrix. The invention also relates to a kit employing a support or matrix according to the invention, especially for detection or purification of nucleic acids, or nucleic acid binding (e.g. regulatory) proteins. In another embodiment, the present invention relates to a kit for introducing modified nucleosides into a nucleic acid and then covalently binding such a nucleic acid to a support.
本发明涉及一种用基团修饰双链核酸的工艺,这些基团可使这些核酸与支持物或其他基质的表面共价结合。在另一个实施方案中,本发明涉及一种可根据上述方法或工艺获得的修饰核酸。在另一个实施方案中,本发明涉及一种携带共价键合修饰核酸(尤其是 DNA 或 RNA)的支持物,其中核酸通过一种或多种修饰核苷键合到所述支持物的表面。此外,本发明还涉及一种基质,该基质可以是凝胶状,可通过
交联剂交联根据本发明修饰的核酸而获得。本发明还涉及一种制造这种基质的方法。本发明还涉及一种采用本发明的支持物或基质的试剂盒,特别是用于检测或纯化核酸或核酸结合蛋白(如调节蛋白)。在另一个实施方案中,本发明涉及一种试剂盒,用于将修饰的核苷引入核酸,然后将这种核酸与支持物共价结合。