查询词典 luciferase

Forty-eight hours after transfection, cells were harvested to determine luciferase activity by illuminometer. In the presence of RU486 a 40-fold maximum activation of the luciferase reporter gene was observed in cultured cells, whereas in the absence of RU486, no significant activation was observed. There was a positive correlation between the luciferase activation and RU486 concentration in a definite range. The results showed that the RU486-inducible regulatory vector was successfully constructed, which can be used to regulate the expression level of genes of interest in appropriate time by the inducer RU486. This inducible expression vector provides a platform for the research of gene regulation and gene therapy.

加入诱导剂RU486后，可以诱导表达荧光素酶，并在一定范围内两者呈正比，最高可以实现荧光素酶的40余倍的表达，而没有RU486时，几乎没有报告基因的表达，表明RU486诱导调控载体构建成功，可实现对目的基因的表达时间和表达水平的精确调控，为进一步的基因调控研究和和基因治疗提供了良好的工具。

Next,we transfected the HOXD13 expression vector,luciferase reporter driven by EPHA7 promoter and renilla luciferase reporter into mouse C3H10T1/2 cell. Thirty six hours after transfection,relative luciferase activity was tested by luminometer.

结果显示，与野生型HOXD13蛋白相比，p.Q317R突变体对EPHA7启动子的转录激活作用明显降低，下降至野生型的13%，而p.1314L突变体对EPHA7启动子的转录激活作用也降低，但降低程度没有p.Q317R明显，为野生型的63%。

Firefly luciferase activities were measured by double luciferase assays System,and Renilla luciferase was used as internal control.

生物学信息学预测VEGF可能是miR-126的靶基因，miR-126通过作用于VEGF的3\'UTR端而起到抑制基因表达的作用。

Forty-eight hours after transfection, cells were harvested to determine luciferase activity by illuminometer, In the presence of RU486 a 40-fold maximum activation of the luciferase reporter gene was observed in cultured cells, whereas in the absence of RU486, no significant activation was observed.

加入诱导剂RU486后，可以诱导表达荧光素酶，并在一定范围内两者呈正比，最高可以实现荧光素酶的40余倍的表达，而没有RU486时，几乎没有报告基因的表达，表明RU486诱导调控载体构建成功，可实现对目的基因的表达时间和表达水平的精确调控，为进一步的基因调控研究和基因治疗提供了良好的工具。

Luciferase activity was assayed with Dual-luciferase reporter system and measured by Luminometer.

以Duabludferase reporter系统为底物并采用荧光测定仪测定荧光酶活性。

Methods:The luciferase reporter plasmids of MDM2 P2 promoter containing different SNP309 were contructed,and cotransfected into CV-1 cells with AML1-ETO,AML1 and SP1 expression plasmid.The transactivities of luciferase were assayed by luminometer to determine the impact of AML1,AML1-ETO,and SP1 on MDM2 P2 promoter.

研究方法：构建含不同SNP309位点的MDM2 P2启动子的报告质粒，与AML1-ETO、AML1以及SP1的表达质粒单独或共转染CV-1细胞，测定荧光素酶的活性，分析AML1-ETO、AML1以及SP1对MDM2 P2启动子的影响。

Firstly, the pGL3-Control vector was reconstructed , the pGL3-Enhancer vector deletious of SV40 promoter gene was obtained . Then the IFN-β promoter gene was cloned into the pGL3-Enhancer vector and pGL-IP21, the Luciferase reporter plasmid with IFN-β promoter was OK. The availability of pGL-IP21 was verified by NDV ,the inductor of IFN-β, the Luciferase activity was assayed in cells transfected with pGL-IP21 by Luminometer.

首先将pGL3-Control载体进行了改构，除去了SV40启动子基因，获得了pGL3-Enhancer载体，将获得的IFN-β启动子基因连入载体中，构建了带有人IFN-β启动子基因的荧光素酶报告质粒IP-21，并且通过实验证明所构建的质粒在干扰素的诱导剂NDV的作用下能够表达荧光素酶活性，照度计检测荧光素酶活性增强，从而验证了所构建的重组质粒的有效性。

To minimize cellular variations, we generated stable cell lines for firefly luciferase reporters, and used Renilla luciferase-fused transcription factor to measure the quantity of individual transcription factor.

为了将细胞的变化值减到最小，我们设计了带有firefly luciferase reporters稳定细胞株的建立，并且利用fusion protein(同时带有Renilla luciferase与转录因子构筑融合蛋白)去计算出单独转录因子的数量。

Cells were immediately fixed and processed for immuno?uorescence and tested for translocation ofβ-catenin.β-catenin and target genes of Wnt/β-catenin signaling COX-2, cyclinD1, c-fos, c-Jun mRNA expression were examined by RT-PCR. Saos-2 osteoblastic cells were co-transfected with a wild type or mutant Tcf luciferase reporter gene and Renilla luciferase plasmid. Posttransfection cells were subjected to 1 hour of 12% elongation.

作用1h、2h和4h后，用免疫荧光的方法检测β-catenin的表达和在细胞上定位的变化；用半定量RT-PCR检测β-catenin mRNA表达的变化；用质粒转染的方法检测荧光素酶报告基因Tcf转录的情况；用半定量RT-PCR检测Wnt/β-catenin通路下游基因COX-2，cyclinD1， c-fos， c-Jun mRNA表达的情况；用免疫共沉淀的方法检测β-catenin和E-Cadherin的结合情况。

And ZNF397nf function as transcription repressors. The different transcriptional regulation activity of the nf isoforms and their interaction with the fu isoforms would contribute to the complexity of the transcription regulation. To further examine the biological function of interaction between different isoforms we also analyze the potential role of ZNF191 and ZNF434 on signaling pathway. We found that ZNF191fu can significantly enhance the HSE-luciferase activity, while ZNF434fu can enhance the AP1-luciferase activity, then we analyze whether the nf isoforms have impact on the fu isoforms.

而这些成员的nf剪接本与它们对应的fu剪接本的转录调控功能有所不同，其中ZNF191nf与ZNF434nf剪接本的转录调控活性相对它们的fu剪接本显著降低，呈现较弱的转录抑制作用，但ZNF447nf剪接本却呈现出显著的转录激活作用，同时ZNF397nf剪接本则表现出显著的转录抑制作用，ZNF396nf剪接本的转录调控作用与其fu剪接本相当。nf剪接本这种与fu剪接本不尽相同的转录调控活性以及能与fu剪接本互作的能力，大大增加了转录调控作用的复杂性，这使得通过少量的转录因子作用来实现众多基因时空表达的不同成为可能。

Diabetes is a social disease that affects several million people worldwide.

糖尿病是一个社会性疾病，全世界有数百万人罹患此病。

I'll call you on Friday to see if we can reschedule our luncheon meeting at your convenience.

我星期五会给您打电话在您方便的时候我们重新安排我们的午餐约会。