相关实验视频
Updated: Mar 15, 2026
06:16
mirMachine: A One-Stop Shop for Plant miRNA Annotation
Published on: May 1, 2021
3.0K
西尼罗河病毒衍生的微RNA的综合生物信息学预测揭示了潜在的宿主调节相互作用
Mehmet Emin Orhan1, Altay Nida Erginkoç2, Müşerref Duygu Saçar Demirci3
1Abdullah Gül University, Graduate School of Engineering and Science, Department of Bioengineering, Kayseri, Turkey.
Computational biology and chemistry
|March 13, 2026
概括
这项研究确定了西尼罗河病毒 (WNV) 编码的新型微RNA (miRNA),揭示了它们在感染期间调节宿主基因表达中的潜在作用. 这些发现为了解WNV病原体和开发抗病毒策略提供了新的途径.
科学领域:
- 病毒学 病毒学
- 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:
- 西尼罗河病毒 (WNV) 是一种由蚊子传播的显著的病毒,导致神经侵入性疾病.
- 众所周知,宿主和载体微RNAs (miRNAs) 能够影响病毒感染.
- WNV编码的miRNAs在感染中的作用在很大程度上仍未得到研究.
研究的目的:
- 为了识别和描述WNV编码的成熟miRNAs.
- 探索这些病毒miRNA在WNV感染期间宿主基因调节中的功能相关性.
- 建立一个用于预测病毒miRNA目标和网络的计算框架.
主要方法:
- 开发一个整合性的生物信息学管道,结合多个miRNA预测算法.
- 应用二次结构选和宿主转录基因数据 (RNA-seq) 来确定候选者的优先级.
- 使用预测的miRNA-mRNA,lncRNA和circRNA相互作用构建一个具有竞争力的内源RNA (ceRNA) 网络.
主要成果:
- 识别高可信度候选WNV衍生的成熟miRNAs.
- 优先考虑假定miRNA-mRNA相互作用与感染相关基因调节中的潜在作用.
- 指定关键的生物通路,包括先天免疫和病毒复制,由WNVmiRNAs调节.
结论:
- 该研究提出了一种可重现的计算工作流程,用于发现病毒miRNAs.
- 已识别的WNV编码的miRNA及其预测的目标为实验验证提供了可测试的假设.
- 这些发现促进了对病毒调节机制和WNV病变的理解.
相关概念视频
01:22MicroRNAs
24.5K
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...
24.5K
01:22MicroRNAs
4.2K
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...
4.2K
01:22MicroRNAs
12.0K
12.0K
01:29Viruses with RNA Genomes
1.2K
RNA viruses are categorized into positive-strand, negative-strand, or double-stranded groups based on their genomic structure and replication mechanisms. This classification dictates how they exploit host cellular machinery for protein synthesis and replication. Some RNA viruses also utilize reverse transcription as part of their life cycle, further diversifying their replication strategies.Positive-Strand RNA VirusesPositive-strand RNA viruses have genomes that function directly as messenger...
1.2K