概括
的核糖体DNA (rDNA) 被克隆成重组菌体. 研究人员成功地将克隆的rDNA片段用于使用lambda菌体基因进行转录,从而进一步研究基因表达.
科学领域:
- 分子生物学分子生物学
- 遗传学 是一个遗传学.
- 生物技术是生物技术.
背景情况:
- 核糖体RNA基因 (核糖体DNA) 对于蛋白质合成至关重要,并且在真核生物基因组内存在多个副本.
- 了解核糖体DNA的结构和组织对于研究基因调节和基因组进化至关重要.
- 限制内核酶Eco RI是一种用于在特定识别位点分裂DNA的工具.
研究的目的:
- 使用重组DNA技术克隆肉的核糖体DNA片段.
- 为了引导克隆的核糖体DNA片段进行潜在的转录研究.
- 研究使用兰巴菌体系统来表达真核基因的可行性.
主要方法:
- 使用Eco RI限制性内核酶分离和切割的核糖体DNA.
- 通过将核糖体DNA片段与lambda gtWES-lambdaC载体结合,构建复合菌体.
- 对克隆的核糖体DNA插件相对于lambda菌体转录促进体的定向的分析.
主要成果:
- 的核糖体DNA被Eco RI成功地切割成两个不同的片段.
- 在实验室中构建了含有肉核糖体DNA片段的重组菌体.
- 克隆碎片与兰巴转录单元相比,以两种不同的方式定向:一种用于"早期"基因表达,两种用于"晚期"基因表达.
结论:
- 这项研究表明,的核糖体DNA碎片在一个lambda菌体载体内成功克隆和定向.
- 这为未来研究肉核糖体RNA基因的转录调节提供了基础.
- 开发的重组菌体为使用菌体机械研究真核细胞基因表达提供了一个系统.
相关概念视频
RNA-seq
RNA sequencing, or RNA-Seq, is a high-throughput sequencing technology used to study the transcriptome of a cell. Transcriptomics helps to interpret the functional elements of a genome and identify the molecular constituents of an organism. Additionally, it also helps in understanding the development of an organism and the occurrence of diseases.
Before the discovery of RNA-seq, microarray-based methods and Sanger sequencing were used for transcriptome analysis. However, while microarray-based...
Before the discovery of RNA-seq, microarray-based methods and Sanger sequencing were used for transcriptome analysis. However, while microarray-based...
Ribosome Profiling
Ribosome profiling or ribo-sequencing is a deep sequencing technique that produces a snapshot of active translation in a cell. It selectively sequences the mRNAs protected by ribosomes to get an insight into a cell’s translation landscape at any given point in time.
Applications of ribosome profiling
Ribosome profiling has many applications, including in vivo monitoring of translation inside a particular organ or tissue type and quantifying new protein synthesis levels.
The technique helps...
Applications of ribosome profiling
Ribosome profiling has many applications, including in vivo monitoring of translation inside a particular organ or tissue type and quantifying new protein synthesis levels.
The technique helps...


