RIBOSS通过结合长短读取的转录组和转录组分析概况来检测新的翻译事件
Chun Shen Lim1,2, Alexandra K Gibbon1,2, Anh Thu Tran Nguyen1,2
1Department of Biochemistry, School of Biomedical Sciences, University of Otago, 710 Cumberland Street, Dunedin North, Dunedin 9016, New Zealand.
Briefings in bioinformatics
|April 13, 2025
概括
RIBOSS是一个新的计算管道,使用核糖体分析识别新的,可翻译的开放阅读框架 (ORF). 它增强了在细菌和真核生物基因组中的ORF发现,即使有不完整的注释.
科学领域:
- 基因组学就是基因组学.
- 生物信息学是一种生物信息学.
- 分子生物学分子生物学
背景情况:
- 核糖体分析捕捉了RNA上的核糖体位置,从而推进了转基因组分析.
- 检测翻译的开放阅读框架 (ORF) 是至关重要的,但基因组注释往往不完整,特别是在细菌转录开始/终结地点.
- 这限制了在未被翻译的地区发现新的ORF的可能性.
研究的目的:
- 开发一个计算管道,RIBOSS,用于发现非正规的ORF并评估它们的翻译潜力.
- 使用RIBOSS.分析原生生物和真核生物数据.
- 为了证明RIBOSS在有不完整转录组注释的生物中的实用性.
主要方法:
- 使用Python模块开发RIBOSS计算管道.
- 对Homo sapiens,Arabidopsis thaliana和Salmonella enterica的核糖体分析数据进行分析.
- 整合长读和短读测序数据用于转录组组装和ORF检测.
主要成果:
- 确定在人类,植物和细菌物种中具有高转化潜力的非正规ORF清单.
- 证明RIBOSS在分析具有有限转录组注释的生物体中的有效性,例如S. enterica.
- 成功应用RIBOSS以使用组合测序技术检测新型转化事件.
结论:
- RIBOSS是第一个用于非正规ORF检测和转化潜力评估的集成计算管道.
- 管道有效地结合了长读和短读测序技术来调查翻译.
- RIBOSS是免费可用的,并增强了新型ORF的系统发现.
相关概念视频
Ribosome Profiling
3.4K
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...
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...
3.4K
RNA-seq
9.7K
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...
Before the discovery of RNA-seq, microarray-based methods and Sanger sequencing were used for transcriptome analysis. However, while...
9.7K
Leaky Scanning
5.0K
During most eukaryotic translation processes, the small 40S ribosome subunit scans an mRNA from its 5' end until it encounters the first start AUG codon. The large 60S ribosomal subunit then joins the smaller one to initiate protein synthesis. The location of the translation initiation is largely determined by the nucleotides near the start codon as there may be multiple translation initiation sites present on the mRNA. Marilyn Kozak discovered that the sequence RCCAUGG (where R...
5.0K


