申请人:Life Technologies Corporation
公开号:US10941435B2
公开(公告)日:2021-03-09
Provided herein are compounds, enzyme substrates, compositions, kits, uses, and methods for detecting the presence or absence of a caspase enzyme, measuring the activity of a caspase enzyme, or detecting the presence or absence of apoptosis. The detection or measurement can occur through intracellular cleavage of a compound or enzyme substrate, which can lead to an increase in fluorescence, e.g., in the violet or red channel, through liberation of a nucleic acid binding dye from a peptide, such as liberation of a DNA-binding dye from a negatively charged peptide comprising a sequence recognized and cleaved by a caspase.
本文提供的化合物、酶底物、组合物、试剂盒、用途和方法可用于检测是否存在caspase酶、测量caspase酶的活性或检测是否存在细胞凋亡。检测或测量可通过化合物或酶底物的细胞内裂解进行,这种裂解可导致荧光增加,例如在紫通道或红通道中,通过从肽中释放核酸结合染料,如从包含被caspase识别和裂解的序列的带负电的肽中释放DNA结合染料。