There provided, inter alia, reagents and methods for modulation fluorescence of a tetrazine containing compound and/or a dienophile-containing compound. There is provided a method of detecting binding of a first affinity ligand and a second affinity ligand, the method includes the follow steps. Contacting a tetrazine-containing compound with a dienophile-containing compound, the tetrazine-containing compound comprising a first affinity ligand covalently attached to a tetrazine moiety and the dienophile-containing comprising a second affinity ligand covalently attached to a dienophile moiety.
提供了用于调节含有四氮杂环的化合物和/或含有
二烯丙基的化合物荧光的试剂和方法。提供了一种检测第一亲和
配体和第二亲和
配体结合的方法,该方法包括以下步骤。将含有四氮杂环的化合物与含有
二烯丙基的化合物接触,其中含有四氮杂环的化合物包括与四氮杂环基团共价连接的第一亲和
配体,含有
二烯丙基的化合物包括与
二烯丙基团共价连接的第二亲和
配体。