在N6 - - 甲基氨酸功能的分子调节中的ubiquitination和deubiquitination
Yue Zhao1,2, Jiaojiao Huang2, Kexin Zhao2
1Department of Laboratory Medicine, Affiliated Hospital, Jiangsu University, Jiefang Road No 438, Zhenjiang, 212002, China.
概括
在细胞功能和疾病中,N6-甲基氨酸 (m6A) RNA的修改至关重要. 本综述探讨了ubiquitination和deubiquitination如何影响m6A分子在癌症和代谢障碍等疾病中.
科学领域:
- 分子生物学分子生物学
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
- 生物化学 生物化学
背景情况:
- N6-甲基氨酸 (m6A) 是最丰富的RNA表观遗传修饰,在转录后影响基因表达.
- m6A调节关键的细胞过程,包括干细胞动态,瘤进展,免疫力和新陈代谢.
- 乌比基因化和二维基因化是控制蛋白质稳定性和功能的翻译后修改.
研究的目的:
- 审查ubiquitination/deubiquitination与m6A修饰之间的相互作用.
- 阐明这些组合修改在疾病发病过程中的作用.
- 突出这些调节机制在细胞压力,新陈代谢和瘤生长中的重要性.
主要方法:
- 对最近关于m6A,ubiquitination和deubiquitination的研究进行文献综述.
- 在各种生物环境中分析这些修饰的功能后果.
- 综合有关它们对疾病机制影响的信息.
主要成果:
- 化和脱化动态调节机械元件的水平和功能.
- 这些修改影响了m6A介导的基因表达和细胞反应.
- 这些途径的失调与代谢障碍,细胞应激反应和瘤发生有关.
结论:
- 整合m6A表谱学与ubiquitination/deubiquitination蛋白学提供了一个新的基因调节层.
- 针对这些相互连接的途径为m6A相关疾病提供了潜在的治疗策略.
- 进一步的研究是有必要的,以充分了解复杂的监管网络及其临床影响.
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
Nuclear Export of mRNA
7.7K
Before mRNAs are exported to the cytoplasm, it is crucial to check each mRNA for structural and functional integrity. Eukaryotic cells use several different mechanisms, collectively known as mRNA surveillance, to look for irregularities in mRNAs. Irregular or aberrant mRNA are rapidly degraded by various enzymes. If a defective mRNA escapes the surveillance, it would be translated into a protein which would either be non-functional or not function properly. One of the primary irregularities in...
7.7K
Regulation of Expression at Multiple Steps
910
The gene expression in cells is regulated at different stages: (i) transcription, (ii) RNA processing, (iii) RNA localization, and (iv) translation. Transcriptional regulation is mediated by regulatory proteins such as transcription factors, activators, or repressors—these control gene expression by initiating or inhibiting the transcription of genes. Once a precursor or pre-mRNA is produced, it undergoes post-transcriptional modification, including 5' capping, splicing, and the...
910
mRNA Stability and Gene Expression
5.6K
The structure and stability of mRNA molecules regulates gene expression, as mRNAs are a key step in the pathway from gene to protein. In eukaryotes, the half-life of mRNA varies from a few minutes up to several days. mRNA stability is essential in growth and development. The absence of the proteins regulating its stability, such as tristetraprolin in mice, can cause systemic issues, including bone marrow overgrowth, inflammation, and autoimmunity.
Cis-acting Elements involved in mRNA stability
Cis-acting Elements involved in mRNA stability
5.6K
RNA Stability
33.5K
Intact DNA strands can be found in fossils, while scientists sometimes struggle to keep RNA intact under laboratory conditions. The structural variations between RNA and DNA underlie the differences in their stability and longevity. Because DNA is double-stranded, it is inherently more stable. The single-stranded structure of RNA is less stable but also more flexible and can form weak internal bonds. Additionally, most RNAs in the cell are relatively short, while DNA can be up to 250 million...
33.5K
Covalently Linked Protein Regulators
6.8K
Proteins can undergo many types of post-translational modifications, often in response to changes in their environment. These modifications play an important role in the function and stability of these proteins. Covalently linked molecules include functional groups, such as methyl, acetyl, and phosphate groups, and also small proteins, such as ubiquitin. There are around 200 different types of covalent regulators that have been identified.
These groups modify specific amino acids in a protein....
These groups modify specific amino acids in a protein....
6.8K


