pISRE-TA-Luc

pISRE-TA-Luc

载体基本信息

出品公司:	Ybscience
载体名称:	pISRE-TA-Luc
质粒类型:	信号通路报告系统载体
高拷贝/低拷贝:	--
启动子:	--
克隆方法:	多克隆位点，限制性内切酶
载体大小:	4.9kb
5' 测序引物及序列:	--
3' 测序引物及序列:	--
载体标签:	--
载体抗性:	Ampicillin
筛选标记:	--
备注:	--
稳定性:	--
组成型:	--
病毒/非病毒:	--

 

载体质粒图谱和多克隆位点信息

载体简介

 

pISRE-TA-Luc is designed for monitoring the induction of the STAT1 and STAT2 components of Jak/STAT-mediated signal 
transduction pathways. Signaling molecules, including type I(IFN-α and -β) and type II (IFN-γ) interferons (1), induce 
signalling by binding receptors and causing receptor dimerization at the cell surface. This dimerization causes the receptor 
itself to be phosphorylated and act as a docking site for transcription factors, including STAT1 and STAT2. The STAT proteins 
are then phosphorylated, dimerize and translocate to the nucleus, where the STAT1 and STAT2 heterodimer regulates transcription by binding to the IFN-stimulated response element (ISRE; 2). pISRE-TA-Luc contains five copies of the ISRE enhancer element, 
located upstream of the minimal TA promoter, the TATA box from the herpes simplex virus thymidine kinase promoter (PTA). 
Located downstream of the PTA is the firefly luciferase gene (luc). Upon binding of the STAT1 and STAT2 heterodimer to the 
cis-acting ISRE enhancer element, transcription is induced and the reporter gene is activated.
The luciferase coding sequence is followed by the SV40 late polyadenylation signal to ensure proper, efficient processing of 
the luciferase transcript in eukaryotic cells. A synthetic transcription blocker (TB) is located upstream of the cis-acting 
enhancer element. It is composed of adjacent polyadenylation and transcription pause sites for blocking nonspecific 
transcription (3). The vector backbone also contains an f1 origin for single-stranded DNA production, a pUC origin of 
replication, and an ampicillin resistance gene for propagation and selection in E. coli.