The present invention provides acetal derivatives of luciferin and methods for using such derivatives in enzyme activity assays where the luciferin derivative serves as a substrate for a desired enzyme and is a prosubstrate for luciferase (a proluciferin). Thus, by providing luciferin derivatives having a particular enzyme recognition site for a desired nonluciferase enzyme (a reactive chemical group in a molecule referred to as a substrate for the enzyme) coupled to the luciferin backbone (or other chemical moiety constituting a suitable substrate for luciferase), e.g., derivatives having modifications at the carboxyl group of D- luciferin or aminoluciferin as well as optionally other modifications, nonluciferase enzymes may be measured in a bioluminescent assay.
本发明提供了路西非因的
缩醛衍
生物以及使用这些衍
生物的方法,其中路西非因衍
生物作为所需酶的底物,是路西非酶的前体(一种前路西非因)。因此,通过提供具有特定酶识别位点的路西非因衍
生物,用于所需的非路西非酶(分子中的反应性
化学基团,作为酶的底物)的酶活性测定,这些衍
生物与路西非因骨架(或构成路西非酶适合底物的其他
化学基团)耦合,例如,在D-路西非因或
氨基路西非因的羧基上进行修饰以及可选的其他修饰,非路西非酶酶可以在
生物发光测定中测量。