探索PARP1和circRNA生物发生和功能之间的相互作用
Hejer Dhahri1,2, Yvonne N Fondufe-Mittendorf2
1Department of Molecular and Cellular Biochemistry, University of Kentucky, Lexington, Kentucky, USA.
Wiley interdisciplinary reviews. RNA
|November 14, 2023
概括
聚ADP-核糖) 聚合酶1 (PARP1) 调节基因表达和RNA处理. 这篇评论探讨了PARP1的研究.
科学领域:
- 分子生物学分子生物学
- 在RNA生物学,RNA生物学.
- 生物化学 生物化学
背景情况:
- 聚ADP-ribose) 聚合酶1 (PARP1) 是一种多功能蛋白质,参与DNA修复和应激反应.
- PARP1的作用扩展到基因表达调制,影响mRNA处理步骤.
- 它在非编码RNA生物发生中的特定功能,特别是循环RNA (circRNA),不太了解.
研究的目的:
- 审查PARP1在循环RNAs (circRNAs) 生物发生中的已知和潜在作用.
- 要突出PARP1在核过程中的调节功能,重点是circRNA.
- 确定与PARP1失调相关的疾病的潜在治疗点.
主要方法:
- 对RNA代谢中PARP1功能研究的文献综述.
- 对PARP1与核酸和参与RNA处理的蛋白质相互作用的分析.
- 综合关于PARP1对mRNA和非编码RNA生物发生的影响的当前知识.
主要成果:
- PARP1参与mRNA生物发生的多个阶段,包括转录,拼接和翻译.
- 新出现的证据表明PARP1影响circRNA形成.
- PARP1的多方面的相互作用强调了它在细胞调节网络中的重要性.
结论:
- PARP1是基因表达和RNA生物发生的关键调节者,包括circRNAs.
- 对PARP1在circRNA生物发生中的作用的进一步调查可能会为癌症和神经退行等疾病提供见解.
- 了解PARP1的核功能为治疗干预提供了途径.
相关概念视频
piRNA - Piwi-interacting RNAs
6.9K
PIWI-interacting RNAs, or piRNAs, are the most abundant short non-coding RNAs. More than 20,000 genes have been found in humans that code for piRNAs while only 2000 genes have been found for miRNAs. piRNAs can act at the transcriptional and post-transcriptional levels and have a vital role in silencing transposable elements present in germ cells. They are also involved in epigenetic silencing and activation. Previously, they were thought to function only in germ cells but new evidence suggests...
6.9K
Chromatin Structure Regulates pre-mRNA Processing
7.0K
In eukaryotic cells, nascent mRNA transcripts need to undergo many post-transcriptional modifications to reach the cell cytoplasm and translate into functional proteins. For a long time, transcription and pre-mRNA processing were considered two independent events that occur sequentially in the cell. However, it has now been well established that transcription and pre-mRNA processing are two simultaneous processes that are precisely regulated inside the cell.
The chromatin structure, especially...
The chromatin structure, especially...
7.0K
Long-patch Base Excision Repair
7.0K
Since the discovery of the two BER pathways, there has been a debate about how a cell chooses one pathway over the other and the factors determining this selection. Numerous in vitro experiments have pointed out multiple determinants for the sub-pathway selection. These are:
7.0K
Circadian Rhythms and Gene Regulation
4.1K
The biological clock is involved in many aspects of regulating complex physiology in all animals. It was in 1935 when German zoologists, Hans Kalmus and Erwin Bünning, discovered the existence of circadian rhythm in Drosophila melanogaster. However, the internal molecular mechanisms behind the circadian clock remained a mystery until 1984, when Jeffrey C. Hall, Michael Rosbash, and Michael W. Young discovered the expression of the Per gene oscillating over a 24-hour cycle. In subsequent...
4.1K
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
DNA Damage can Stall the Cell Cycle
9.2K
In response to DNA damage, cells can pause the cell cycle to assess and repair the breaks. However, the cell must check the DNA at certain critical stages during the cell cycle. If the cell cycle pauses before DNA replication, the cells will contain twice the amount of DNA. On the other hand, if cells arrest after DNA replication but before mitosis, they will contain four times the normal amount of DNA. With a host of specialized proteins at their disposal,cells must use the right protein at...
9.2K


