查询词典 transcription

After 24 hours incubations treated by different concentrations of triptolide (12.5, 25, 50 nmol/L), the mRNA level of VEGF by Raji cells was measured by reverse transcription-polymerase chain reaction.

RT-PCR法检测12.5，25，50 nmol/L雷公藤内酯醇处理Raji细胞24 h后，细胞VEGFmRNA表达的变化。

Activation of the cells induces the transcription of whole virus DNA to messenger RNA.

细胞的活化将诱导整个病毒DNA转录成信息RNA。

Messenger RNA does not contain introns, these being removed during the transcription process.

信使 RNA 中没有内含子，它们在转录后加工的过程中被切除了。

Hes5 gene, a key downstream mediators of Notch signaling that functions by inhibiting the expression or activity of positively acting bHLH factors, is a member of bHLH transcription factor family which acts as a positive-negative transcriptional regulators which is expressed transiently in different stages in cells growth and differentiation and orchestrate those precisely timed and progressive maturational events underlying cell fate decisions according to orders of time and spatial and coordinated the function of majority of signaling transduction on target genes to influence the proliferation and differentiation.

Hes5是Notch通路转导途径的一个关键的下游信号分子，通过抑制正调控bHLH因子的表达和活性来发挥作用，隶属于碱性螺旋-环区-螺旋转录因子家族。该家族形成一个正负转录调节器，按时空顺序短暂表达于细胞发育分化的不同阶段，介导和协调多种信号系统对大量靶基因的作用，影响细胞增殖、分化。

Detecting overrepresented known transcription factor binding motifs in a set of promoter sequences of co-regulated genes has become an important approach to deciphering transcriptional regulatory mechanisms.

在一组共调控基因的启动子序列中检测过代表的已知转录因子结合motifs已经成为破译转录调控机制的重要方式。

What mechanisms are used to restrict the transcription of each of the three eukaryotic polymerases to a particular subsets of eukaryotic genes?

有怎样的机制能够限定真核生物的每种rna聚合酶只能转录特定的基因？

Eukaryotes have three distinct RNA polymerases that catalyze transcription of nuclear genes.

真核细胞有三种截然不同的催化细胞核基因转录的RNA聚合酶。

The transcription sites of the polymerases have been studied since early 1980s.

早在80年代初期人们即对这三种RNA聚合酶在细胞核中的转录位点进行了研究。

Various lines of evidence suggest that nuclear actin is required for efficient transcription by RNA polymerases I, II and III.

众多前人实验证据表明，细胞核内肌动蛋白是RNA聚合酶I、II和III所介导的高效率转录所必需的。

It is well known that the processes of transcription and translation are coupled in prokaryotes.

原核生物转录与翻译过程是耦联的。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐