相关实验视频
Updated: Jun 19, 2025

10:24
Xenopus laevis as a Model to Identify Translation Impairment
Published on: September 27, 2015
10.7K
在Litopenaeus Vannamei转化发展过程中的动态替代多化
Xueqin Yang1,2, Xiuli Chen1,3, Chengzhang Liu4
1China (Guangxi)-ASEAN Key Laboratory of Comprehensive Exploitation and Utilization of Aquatic Germplasm Resources, Ministry of Agriculture and Rural Affairs, Guangxi Academy of Fishery Sciences, Nanning 530021, China.
Genes
|July 27, 2024
概括
在 (Litopenaeus vannamei) 变形过程中分析了替代多基化 (APA) 模式. 逐渐的3'UTR延长成为影响新陈代谢和发育的关键APA模式.
科学领域:
- 分子生物学分子生物学
- 发展生物学 发展生物学
- 基因组学就是基因组学.
背景情况:
- 替代多氨基化 (APA) 对于真核生物的基因表达至关重要,影响细胞增殖和分化.
- 在Litopenaeus vannamei转化过程中APA的特定作用和动态模式在很大程度上仍未被探索.
研究的目的:
- 为了研究在Litopenaeus vannamei转化过程中APA的动态模式.
- 确定关键的APA事件和涉及开发的监管网络.
主要方法:
- 在Litopenaeus vannamei中,从胚胎到成熟的16个时间点进行了RNA测序.
- 确定了差异化的APA事件,并使用模糊平均集群来分析动态模式.
- 构建了mRNA-miRNA和蛋白质-蛋白质相互作用 (PPI) 网络.
主要成果:
- 在早期和成年阶段之间,确定了247个不同表达的APA事件.
- 发现了五种不同的动态APA模式,其中逐渐的3'UTR延长是主要模式.
- 与逐渐的3'UTR延长相关的基因在蛋白质和能量代谢途径中得到丰富.
- 通过网络分析,通过网络分析确定了几种可能调节发育的中央微RNA (miRNA).
结论:
- 这项研究揭示了管理Litopenaeus vannamei变形的复杂APA机制.
- 这些发现为类发育期间的转录后调节提供了新的见解.
相关概念视频
RNA Editing
9.0K
RNA editing is a post-transcriptional modification where a precursor mRNA (pre-mRNA) nucleotide sequence is changed by base insertion, deletion, or modification. The extent of RNA editing varies from a few hundred bases, in mitochondrial DNA of trypanosomes, to a just single base, in nuclear genes of mammals. Even a single base change in the pre-mRNA can convert a codon for one amino acid into the codon for another amino acid or a stop codon. This type of re-coding can significantly affect the...
9.0K
Pre-mRNA Processing: Modification of pre-mRNA Ends
9.2K
In eukaryotic cells, transcripts made by RNA polymerase are modified and processed before exiting the nucleus. Unprocessed RNA is called precursor mRNA or pre-mRNA to distinguish it from mature mRNA.
Once about 20-40 ribonucleotides have been joined together by RNA polymerase, a group of enzymes adds a cap to the 5' end of the growing transcript. In this process, a 5' phosphate is replaced by modified guanosine that has a methyl group attached (7-methyl guanosine). This 5' cap helps...
Once about 20-40 ribonucleotides have been joined together by RNA polymerase, a group of enzymes adds a cap to the 5' end of the growing transcript. In this process, a 5' phosphate is replaced by modified guanosine that has a methyl group attached (7-methyl guanosine). This 5' cap helps...
9.2K

