RNA 5-Methylcytosine Modification: Regulatory Molecules, Biological Functions, and Human Diseases

Yanfang Lu1,2,3,4, Liu Yang1,2,3,4, Qi Feng1,2,3,4

  • 1Department of Integrated Traditional and Western Nephrology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China.

PubMed

Insights

RNA 5-methylcytosine (m5C) modification is crucial for gene expression and linked to human diseases. This review details m5C's roles, detection, and regulation in health and illness.

Area of Science:

  • Epigenetics
  • Molecular Biology
  • Genomics

Background:

  • RNA methylation, specifically 5-methylcytosine (m5C), is a key epigenetic modification influencing gene expression.
  • Dysregulation of m5C and its associated regulatory proteins (writers, erasers, readers) is implicated in numerous human diseases.
  • m5C modifications are found across various RNA types, including mRNA, tRNA, rRNA, and ncRNAs, affecting their function and stability.

Purpose of the Study:

  • To provide a comprehensive review of recent advancements in RNA m5C modification.
  • To discuss the distribution, detection methodologies, and regulatory mechanisms of m5C.
  • To highlight the significance of m5C modifications and their regulators in biological processes and human disease pathogenesis.

Main Methods:

  • Literature review of recent studies on RNA m5C modification.
  • Synthesis of information on m5C detection techniques.
  • Analysis of data concerning m5C distribution and regulatory networks.

Main Results:

  • RNA m5C modification plays a vital role in regulating RNA metabolism, stability, nuclear export, and translation.
  • m5C regulators are critical in the development, diagnosis, prognosis, and treatment of diseases, including neurological disorders and cancers.
  • Recent advances have improved the understanding of m5C detection and its widespread occurrence in various RNA species.

Conclusions:

  • RNA m5C modification is a significant epigenetic mark with broad biological implications.
  • Understanding the m5C regulatory network offers new avenues for disease diagnosis, treatment, and monitoring.
  • Further research into m5C is essential for unraveling its full impact on human health and disease.

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...
3.0K
Histone Modification02:32

Histone Modification

The histone proteins have a flexible N-terminal tail extending out from the nucleosome. These histone tails are often subjected to post-translational modifications such as acetylation, methylation, phosphorylation, and ubiquitination. Particular combinations of these modifications form “histone codes” that influence the chromatin folding and tissue-specific gene expression.
Acetylation
The enzyme histone acetyltransferase adds acetyl group to the histones. Another enzyme, histone...
13.1K
Covalently Linked Protein Regulators02:04

Covalently Linked Protein Regulators

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....
6.8K
Spreading of Chromatin Modifications02:25

Spreading of Chromatin Modifications

The histone proteins in the nucleosomes are post-translationally modified (PTM) to increase or decrease access to DNA. The commonly observed PTMs are methylation, acetylation, phosphorylation, and ubiquitination of lysine amino acids in the histone H3 tail region. These histone modifications have specific meaning for the cell. Hence, they are called "histone code". The protein complex involved in histone modification is termed as "reader-writer" complex.
Writers
The writer...
8.2K
RNA Stability01:53

RNA Stability

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...
33.3K
RNA Editing02:23

RNA Editing

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...
8.9K