A chemiluminescent substrate of a hydrolytic enzyme having the following general Formula I is disclosed, as follows:
Lumi-M-P Formula I
where “Lumi” is a chemiluminescent moiety capable of producing light (a) by itself, (b) with MP attached and (c) with M attached. Examples of Lumi include chemiluminescent acridinium compounds, benzacridinium compounds, quinolinium compounds, isoquinolinium compounds, phenanthridinium compounds, and lucigenin compounds, spiroacridan compounds, luminol compounds and isoluminol compounds. M is a multivalent heteroatom having at least one lone pair of electrons selected from oxygen, nitrogen and sulfur, directly attached to the light emitting moiety of Lumi at one end and to P at the other end. P is a group that can be readily removed by hydrolytic enzymes. An enzymatic reaction utilizing the above compound is the following:
where HE is a hydrolytic enzyme. Lumi-M is a chemiluminescent product having physical and/or chemical properties different from those of Lumi-M-P.
本文介绍了一种
水解酶的
化学发光底物,其具有以下一般式I,如下所示:Lumi-M-P 式I,其中“Lumi”是一种
化学发光基团,能够自身(a)、与MP连接(b)或与M连接(c)产生光。Lumi的例子包括
化学发光的
吖啶化合物、苯并
吖啶化合物、
喹啉化合物、
异喹啉化合物、苯并
吖啶化合物、吕克吉宁化合物、螺
吖啶化合物、
吲哚啉化合物和
异吲哚啉化合物。M是一种多价杂原子,具有至少一个孤对电子,选择氧、氮和
硫之一,直接连接到Lumi的发光基团的一端,并连接到P的另一端。P是一种可以被
水解酶轻易去除的基团。利用上述化合物的酶促反应如下所示:其中HE是一种
水解酶。Lumi-M是一种具有与Lumi-M-P不同的物理和/或
化学性质的
化学发光产物。