申请人:THE BOARD OF TRUSTEES OF
THE LELAND STANFORD JUNIOR UNIVERSITY
公开号:EP0336626A1
公开(公告)日:1989-10-11
Methods and compositions are provided for analyzing in viable cells gene expression regulatory elements and systems. The method can be used to evaluate a transcriptional initiation regulatory system or the presence of a trans acting component. The method finds use in evaluating various transcriptional initiation functional sequences for use in expression of products, for the detection of trans acting agents associated with viruses and for quantitating the presence of infectious viruses. The method comprises introducing an expression cassette encoding an enzyme which has a fluorescent substrate, substantially irreversibly introducing the substrate into the cell host and detecting the formation of fluorescence during a predetermined time interval.
本研究提供了分析有活力细胞中基因表达调控元件和系统的方法和组合物。该方法可用于评估转录起始调控系统或反式作用成分的存在。该方法可用于评估用于表达产品的各种转录起始功能序列、检测与病毒有关的反式作用因子以及量化传染性病毒的存在。该方法包括引入编码具有荧光底物的酶的表达盒,基本上不可逆地将底物引入细胞宿主,并在预定的时间间隔内检测荧光的形成。