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Related Concept Videos

Epigenetic Regulation01:37

Epigenetic Regulation

Epigenetic changes alter the physical structure of the DNA without changing the genetic sequence and often regulate whether genes are turned on or off. This regulation ensures that each cell produces only proteins necessary for its function. For example, proteins that promote bone growth are not produced in muscle cells. Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.
X-chromosome...
Epigenetic Regulation01:46

Epigenetic Regulation

Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.
Epigenetic Regulation01:46

Epigenetic Regulation

Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.
Chromatin Structure Regulates pre-mRNA Processing02:41

Chromatin Structure Regulates pre-mRNA Processing

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...
Master Transcription Regulators02:23

Master Transcription Regulators

Master transcription regulators are regulatory proteins that are predominantly responsible for regulating the expression of multiple genes. Often these genes work in concert to drive a  complex process. Activation of a master transcription regulator can lead to a cascade of transcriptional activation necessary for that outcome. These regulators can directly bind to the regulatory sequences of the various genes involved, or they can indirectly regulate transcription by binding to regulatory...
Master Transcription Regulators02:23

Master Transcription Regulators

Master transcription regulators are regulatory proteins that are predominantly responsible for regulating the expression of multiple genes. Often these genes work in concert to drive a  complex process. Activation of a master transcription regulator can lead to a cascade of transcriptional activation necessary for that outcome. These regulators can directly bind to the regulatory sequences of the various genes involved, or they can indirectly regulate transcription by binding to regulatory...

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Related Experiment Video

Updated: Jun 27, 2026

Immunostaining for DNA Modifications: Computational Analysis of Confocal Images
09:42

Immunostaining for DNA Modifications: Computational Analysis of Confocal Images

Published on: September 7, 2017

tRNA methylation: functional insights and epitranscriptomic regulation.

Saihao Wang1,2,3, Yan Wang1,2,3, Ting Zhao1,2,3

  • 1State Key Laboratory of Swine and Poultry Breeding Industry, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, 611130, China.

Cell Communication and Signaling : CCS
|June 26, 2026
PubMed
Summary

Transfer RNAs (tRNAs) are vital for protein synthesis. Their methylation, a key modification, impacts tRNA stability, translation, and the regulation of gene expression by tRNA-derived small RNAs (tsRNAs).

Keywords:
DiseaseEpigenetic regulationTranslational regulationtRNA methylationtRNA stabilitytsRNA

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Last Updated: Jun 27, 2026

Immunostaining for DNA Modifications: Computational Analysis of Confocal Images
09:42

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Published on: September 7, 2017

In Vitro Selection of Engineered Transcriptional Repressors for Targeted Epigenetic Silencing
10:44

In Vitro Selection of Engineered Transcriptional Repressors for Targeted Epigenetic Silencing

Published on: May 5, 2023

Area of Science:

  • Molecular Biology
  • RNA Biology
  • Biochemistry

Background:

  • Transfer RNAs (tRNAs) are essential molecules for protein synthesis, mediating the transfer of genetic information from DNA to proteins.
  • Post-transcriptional modifications (PTMs) of tRNAs, including methylation, are crucial for their structure, function, and stability.
  • Specific tRNA methylations, such as 1-methyladenosine (m 1A), 5-methylcytidine (m 5C), and 7-methylguanosine (m 7G), are abundant and diverse, playing critical roles in cellular processes.

Purpose of the Study:

  • To review the biological functions of tRNA methylation.
  • To highlight the impact of tRNA methylation on tRNA stability and protein translation.
  • To discuss the role of tRNA methylation in the biogenesis and function of tRNA-derived small RNAs (tsRNAs).

Main Methods:

  • This review synthesizes existing research on tRNA methylation and its consequences.
  • Literature analysis focusing on the molecular mechanisms and biological outcomes of tRNA modifications.
  • Examination of the interplay between tRNA methylation and tsRNA production.

Main Results:

  • tRNA methylation is essential for maintaining the structural integrity and stability of tRNAs.
  • These modifications directly influence the efficiency and accuracy of protein translation.
  • tRNA methylation significantly impacts the generation and regulatory roles of tsRNAs in gene expression.

Conclusions:

  • tRNA methylation is a fundamental regulatory mechanism with broad implications for cellular function.
  • Understanding tRNA methylation is key to comprehending protein synthesis, RNA regulation, and cellular homeostasis.
  • Further research into tRNA methylation and tsRNAs may reveal new therapeutic targets for diseases associated with translational or regulatory defects.