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Nucleic Acid Modifications in Regulation of Gene Expression
Kai Chen1, Boxuan Simen Zhao1, Chuan He2
1Department of Chemistry and Institute for Biophysical Dynamics, The University of Chicago, 929 East 57th Street, Chicago, IL 60637, USA; Howard Hughes Medical Institute, The University of Chicago, 929 East 57th Street, Chicago, IL 60637, USA.
Cell Chemical Biology
|March 3, 2016
Summary
Nucleic acid modifications are dynamic regulators, not static marks. These chemical changes in DNA and RNA critically influence gene expression and cellular processes in eukaryotes.
Area of Science:
- Molecular Biology
- Epigenetics
- Biochemistry
Background:
- Nucleic acid modifications were historically viewed as static and regulatory.
- Recent advances reveal a dynamic role for these chemical marks in cellular functions.
Purpose of the Study:
- To review key nucleic acid modifications and their regulatory roles in eukaryotes.
- To highlight recent progress in identifying and understanding these modifications.
Main Methods:
- Literature review of nucleic acid modifications.
- Focus on DNA (5-methylcytosine, N(6)-methyladenine) and RNA (N(6)-methyladenosine, pseudouridine, 5-methylcytidine) modifications.
- Brief summary of modifications in other non-coding RNAs.
Main Results:
- Diverse nucleic acid modifications play critical regulatory roles, especially in gene expression.
- Specific examples include 5-methylcytosine and N(6)-methyladenine in DNA; N(6)-methyladenosine, pseudouridine, and 5-methylcytidine in mRNA and lncRNA.
Conclusions:
- Nucleic acid modifications are essential for cellular processes and gene regulation.
- The field is rapidly evolving, uncovering new modifications and their complex functions.
- Future research will continue to reveal layers of chemical and biological complexity.
