promotor

简明释义

英[prəˈməʊtə(r)]美[prəˈmoʊtər]

n. 催化剂；发起人；赞助者；激发器

英英释义

单词用法

同义词

反义词

例句

1.A one-step process of synthesis of high-effective catalytic promotor DDS from diphenyldichlorosilane and methyl alcohol was put forward.

提出了由二苯基二氯硅烷与甲醇一步反应制得高效催化助剂DDS的新工艺。

2.Objective: to predict the promotor position and transcription factor binding sites of human BMP-2 gene.

目的：预测人类BMP - 2基因启动子位置和可能的转录因子结合位点。

3.This promotor is high in fluidization Performance and has lower loss during longer operation in dense phase.

使用时的流化性能好，损耗低，密相床停留时间长。

4.The main methods used, or under investigation, for production of rumen gene engineering bacteria are:gene deletion technique, gene recombination technique and the application of promotor.

正在应用的或处于研究阶段的构建瘤胃基因工程菌的方式主要有基因缺失技术、基因复制性重组技术和启动子的应用技术。

5.The experiment result showed that the sulfur resistance performance of the modified promotor was obviously improved, and which also possessed certain sulfur transfer ability.

试验结果表明，由于载体改性，使催化剂的抗硫性能得到明显改善，并且具备一定的硫转移能力。

6.The main methods used, or under investigation, for production of rumen gene engineering bacteria are:gene deletion technique, gene recombination technique and the application of promotor.

正在应用的或处于研究阶段的构建瘤胃基因工程菌的方式主要有基因缺失技术、基因复制性重组技术和启动子的应用技术。

7.The said promotor had good adaptability with various cracking catalysts.

该助剂对不同催化剂具有很好的适应性。

8.Carbohydrates, in particular mannose containing carbohydrates, are used as a promotor of cell growth.

碳水化合物、特别是含有甘露糖的碳水化合物，用作细胞生长的促进剂。

9.Objective To investigate the relationship between the plasminogen activator inhibitor 1(PAI 1) promotor region gene polymorphism and cerebral stroke.

目的探讨纤溶酶原激活物抑制物-1（PAI- 1）启动子区基因多态性与脑卒中的关系。

10.Microcystins (MC) are hepatotoxins containing cyclic heptapeptides. Microcystin-LR (MC-LR) is a strongly liver tumour promotor.

微囊藻毒素（MC）是一类七肽单环肝毒素，MC-LR是一种强烈的肝脏肿瘤促进剂。

11.The company hired a new promotor to boost their marketing efforts.

公司聘请了一位新的促销员来提升他们的市场营销工作。

12.The event promotor successfully attracted a large audience.

活动的推广者成功吸引了大量观众。

13.As a music promotor, he is responsible for booking venues and artists.

作为一名音乐推广者，他负责预定场地和艺术家。

14.A local artist worked with a promotor to organize a gallery show.

一位当地艺术家与一位推广者合作，组织了一场画廊展览。

15.The promotor secured sponsorships for the upcoming festival.

这位促销员为即将到来的节日争取到了赞助。

作文

In the realm of genetics, a promotor (启动子) plays a crucial role in the process of transcription. It is a specific region of DNA that initiates the transcription of a particular gene. The promotor (启动子) is located upstream of the gene it regulates and serves as a binding site for RNA polymerase, the enzyme responsible for synthesizing RNA from the DNA template. Understanding how promotors (启动子) function is essential for comprehending gene expression and regulation.The structure of a promotor (启动子) includes several key elements, such as the core promoter and various regulatory sequences. The core promoter typically contains a TATA box, which is a conserved sequence that helps position RNA polymerase correctly at the start site of transcription. In addition to the core promoter, other sequences, known as enhancers or silencers, can influence the activity of the promotor (启动子) by interacting with transcription factors. These interactions can either enhance or inhibit the transcriptional activity, making promotors (启动子) dynamic components of gene regulation.Moreover, the activity of a promotor (启动子) can be modulated by various external factors, including environmental signals and cellular conditions. For instance, in response to stress, certain genes may become activated or repressed through changes in promotor (启动子) activity. This adaptability is vital for organisms to respond to their environment effectively.In biotechnology and medicine, understanding promotors (启动子) has significant implications. Scientists manipulate promotors (启动子) in genetic engineering to control the expression of specific genes. For example, researchers can use strong promotors (启动子) to drive high levels of protein production in recombinant DNA technology. Conversely, weak promotors (启动子) may be employed when lower levels of gene expression are desired, allowing for fine-tuned control over biological processes.Furthermore, mutations in promotors (启动子) can lead to diseases. Aberrant promotor (启动子) activity can result in the overexpression of oncogenes or the silencing of tumor suppressor genes, contributing to cancer development. Therefore, studying promotors (启动子) not only enhances our understanding of fundamental biological processes but also aids in the development of therapeutic strategies.In conclusion, a promotor (启动子) is an essential element in the regulation of gene expression. Its ability to interact with various factors and respond to environmental changes underscores its importance in both basic research and applied sciences. As we continue to explore the complexities of genetic regulation, the study of promotors (启动子) will undoubtedly remain a vibrant and critical area of investigation.

在遗传学领域，promotor（启动子）在转录过程中扮演着至关重要的角色。它是DNA的一个特定区域，启动特定基因的转录。promotor（启动子）位于其调控的基因的上游，并作为RNA聚合酶的结合位点，RNA聚合酶是负责从DNA模板合成RNA的酶。理解promotor（启动子）的功能对于理解基因表达和调控至关重要。promotor（启动子）的结构包括几个关键元素，如核心启动子和各种调控序列。核心启动子通常包含TATA框，这是一个保守序列，有助于RNA聚合酶在转录起始位点正确定位。除了核心启动子外，其他序列，如增强子或沉默子，可以通过与转录因子相互作用来影响promotor（启动子）的活性。这些相互作用可以增强或抑制转录活性，使得promotors（启动子）成为基因调控的动态组成部分。此外，promotor（启动子）的活性可以受到多种外部因素的调节，包括环境信号和细胞条件。例如，在应对压力时，某些基因可能会通过改变promotor（启动子）活性而被激活或抑制。这种适应能力对于生物体有效应对环境至关重要。在生物技术和医学中，理解promotors（启动子）具有重要的意义。科学家们在基因工程中操控promotors（启动子）以控制特定基因的表达。例如，研究人员可以使用强效promotors（启动子）来推动重组DNA技术中高水平的蛋白质生产。相反，当需要较低水平的基因表达时，可以采用弱promotors（启动子），从而实现对生物过程的精细控制。此外，promotors（启动子）中的突变可能导致疾病。异常的promotor（启动子）活性可能导致癌基因的过度表达或肿瘤抑制基因的沉默，从而促进癌症的发展。因此，研究promotors（启动子）不仅增强了我们对基本生物过程的理解，还有助于治疗策略的发展。总之，promotor（启动子）是基因表达调控中的一个重要元素。它与各种因素的相互作用及对环境变化的响应凸显了它在基础研究和应用科学中的重要性。随着我们继续探索遗传调控的复杂性，对promotors（启动子）的研究无疑将继续成为一个充满活力和关键的研究领域。