质粒类型：信号通路报告载体

克隆方法：多克隆位点，限制性内切酶

载体大小：4882 bp

载体抗性：Ampicillin (氨苄青霉素)

pE2F-TA-Luc is designed to monitor the induction of E2F-mediated signal transduction pathways. E2F, a major target of the retinoblastoma gene (Rb), is a key regulator of cell-cycle checkpoints in mammalian cells (1–2). E2F plays a critical role in stimulating expression of genes encoding growth-promoting proteins (3), and is involved in regulating the expression of important genes during cell proliferation (4–5). The E2F protein forms a heterodimer complex with the DP1 protein, which binds to E2F response elements and initiates transcription of genes necessary for DNA replication. Studies have shown that deregulation of E2F results in a loss of cell-cycle checkpoints—thereby predisposing cells to uncontrolled growth (1–5). pE2F-TA-Luc contains four copies of the E2F enhancer element (6), located upstream of the minimal TA promoter, the TATA box from the herpes simplex virus thymidine kinase promoter (PTA). Located downstream of PTA is the firefly luciferase reporter gene (luc). Upon binding of the E2F/DP1 complex to the cis-acting E2F 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 (7). 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.

请联系HonorGene技术支持索取产品说明书。

pE2F-TA-Luc质粒序列.txt