预测由lncRNA介导的RNA-RNA相互作用方式
Gourab Das1, Troyee Das1, Sibun Parida1
1Division of Bioinformatics, Bose Institute, Kolkata, India.
IUBMB life
|August 22, 2023
概括
这项研究介绍了LncRTPred,这是一种用于预测长非编码RNA (lncRNA) -信使RNA (mRNA) 相互作用的机器学习模型. 与现有方法相比,LncRTPred提供了更快,更准确的预测,有助于理解lncRNA功能.
科学领域:
- 分子生物学分子生物学
- 生物信息学是一种生物信息学.
- 基因组学就是基因组学.
背景情况:
- 长非编码RNAs (lncRNAs) 是生物过程的关键调节者,理解它们的功能需要识别它们的mRNA目标.
- 目前的lncRNA-mRNA目标预测方法,通常基于热力学,执行时间长,缺乏实时预测能力.
- 缺乏可靠的负数据集阻碍了基于机器学习 (ML) 的有效预测工具的开发.
研究的目的:
- 开发一种基于机器学习的新型模型,LncRTPred,用于准确高效地预测lncRNA-mRNA相互作用.
- 通过生成可靠的负数据集和构建强大的ML模型来解决现有预测工具的局限性.
- 提供一个工具,以促进lncRNA功能及其在生物系统中的作用的阐明.
主要方法:
- 机器学习模型 (LncRTPred) 的开发,用于lncRNA-mRNA目标预测.
- 通过使用BLAT和异常选,从未标记的数据中识别非相互作用的lncRNA-mRNA对来生成可靠的负数据集.
- 使用累积模型得分来最终预测输出.
主要成果:
- 与LncTar.Tar等现有协议相比,LncRTPred显示出更高的预测准确性.
- 该模型的性能与实验确认的疾病特异性lncRNA-mRNA相互作用进行了验证.
- 性能依赖于数据集,由于训练数据的大小,对人类的准确性高于小鼠.
结论:
- LncRTPred提供了一种高效准确的基于ML的方法来预测lncRNA-mRNA相互作用.
- 该工具有助于理解 lncRNA 功能和分子机制.
- 随着互动数据的可用性增加,预计LncRTPred在小鼠预测中的未来改进将会有所增加.
相关概念视频
lncRNA - Long Non-coding RNAs
8.6K
In humans, more than 80% of the genome gets transcribed. However, only around 2% of the genome codes for proteins. The remaining part produces non-coding RNAs which includes ribosomal RNAs, transfer RNAs, telomerase RNAs, and regulatory RNAs, among other types. A large number of regulatory non-coding RNAs have been classified into two groups depending upon their length – small non-coding RNAs, such as microRNA, which are less than 200 nucleotides in length, and long non-coding RNA...
8.6K
Types of RNA
5.9K
Three main types of RNA are involved in protein synthesis: messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). These RNAs perform diverse functions and can be broadly classified as protein-coding or non-coding RNA. Non-coding RNAs play important roles in regulating gene expression in response to developmental and environmental changes. Non-coding RNAs in prokaryotes can be manipulated to develop more effective antibacterial drugs for human or animal use.
RNA Performs Diverse...
RNA Performs Diverse...
5.9K
RNA Interference
26.1K
RNA interference (RNAi) is a process in which a small non-coding RNA molecule blocks the post-transcriptional expression of a gene by binding to its messenger RNA (mRNA) and preventing the protein from being translated.
This process occurs naturally in cells, often through the activity of genomically-encoded microRNAs. Researchers can take advantage of this mechanism by introducing synthetic RNAs to deactivate specific genes for research or therapeutic purposes. For example, RNAi could be used...
This process occurs naturally in cells, often through the activity of genomically-encoded microRNAs. Researchers can take advantage of this mechanism by introducing synthetic RNAs to deactivate specific genes for research or therapeutic purposes. For example, RNAi could be used...
26.1K
Nucleic Acid Structure
6.2K
The pentose sugar in DNA is deoxyribose, while in RNA the pentose sugar is ribose. The difference between the sugars is the presence of the hydroxyl group on the ribose's second carbon and a hydrogen on the deoxyribose's second carbon. The phosphate residue attaches to the hydroxyl group of the 5′ carbon of one sugar and the hydroxyl group of the 3′ carbon of the sugar of the next nucleotide, which forms a 5′ to 3′ phosphodiester linkage.
DNA Structure
DNA...
DNA Structure
DNA...
6.2K
siRNA - Small Interfering RNAs
16.8K
Small interfering RNAs, or siRNAs, are short regulatory RNA molecules that can silence genes post-transcriptionally, as well as the transcriptional level in some cases. siRNAs are important for protecting cells against viral infections and silencing transposable genetic elements.
In the cytoplasm, siRNA is processed from a double-stranded RNA, which comes from either endogenous DNA transcription or exogenous sources like a virus. This double-stranded RNA is then cleaved by the...
In the cytoplasm, siRNA is processed from a double-stranded RNA, which comes from either endogenous DNA transcription or exogenous sources like a virus. This double-stranded RNA is then cleaved by the...
16.8K
MicroRNAs
3.0K
MicroRNA (miRNA) are short, regulatory RNA transcribed from introns (non-coding regions of a gene) or intergenic regions (stretches of DNA present between genes). Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself, forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After the pre-miRNA...
3.0K


