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Updated: Jun 2, 2026

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Chromatin Isolation by RNA Purification (ChIRP)
Published on: March 25, 2012
Non-coding RNAs as regulators of gene expression and epigenetics
Minna U Kaikkonen1, Michael T Y Lam, Christopher K Glass
1Department of Cellular and Molecular Medicine, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0651, USA.
Cardiovascular Research
|May 12, 2011
Summary
Mammalian genomes are pervasively transcribed, revealing novel non-coding RNAs (ncRNAs). These regulatory ncRNAs influence gene expression, chromatin remodeling, and may offer new therapeutic targets for cardiovascular diseases.
Area of Science:
- Genomics
- Molecular Biology
- Epigenetics
Background:
- Genome-wide studies reveal pervasive transcription in mammalian genomes.
- Novel classes of non-coding RNAs (ncRNAs) have been identified.
- ncRNAs play diverse roles in gene regulation.
Purpose of the Study:
- To review the characteristics and functions of regulatory ncRNAs.
- To explore the roles of ncRNAs in chromatin remodeling and gene expression.
- To discuss the potential involvement of ncRNAs in vascular biology and cardiovascular disease.
Main Methods:
- Literature review of genome-wide studies.
- Analysis of regulatory mechanisms of ncRNAs.
- Exploration of ncRNA functions in gene expression and epigenetic modifications.
Main Results:
- ncRNAs regulate gene expression at multiple transcriptional and post-transcriptional levels.
- ncRNAs are involved in chromatin remodeling.
- ncRNAs may mediate epigenetic modifications relevant to cardiovascular disease susceptibility.
Conclusions:
- Regulatory ncRNAs have diverse functions in gene expression.
- ncRNAs are implicated in vascular biology and cardiovascular disease.
- ncRNAs represent potential targets for therapeutic interventions.
Related Concept Videos
lncRNA - Long Non-coding RNAs
In humans, more than 80% of the genome gets transcribed. However, only around 2% of the genome codes for proteins. The remaining part produces non-coding RNAs which includes ribosomal RNAs, transfer RNAs, telomerase RNAs, and regulatory RNAs, among other types. A large number of regulatory non-coding RNAs have been classified into two groups depending upon their length – small non-coding RNAs, such as microRNA, which are less than 200 nucleotides in length, and long non-coding RNA (lncRNA)...
lncRNA - Long Non-coding RNAs
In humans, more than 80% of the genome gets transcribed. However, only around 2% of the genome codes for proteins. The remaining part produces non-coding RNAs which includes ribosomal RNAs, transfer RNAs, telomerase RNAs, and regulatory RNAs, among other types. A large number of regulatory non-coding RNAs have been classified into two groups depending upon their length – small non-coding RNAs, such as microRNA, which are less than 200 nucleotides in length, and long non-coding RNA (lncRNA)...
Types of RNA
Overview
Three main types of RNA are involved in protein synthesis: messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). These RNAs perform diverse functions and can be broadly classified as protein-coding or non-coding RNA. Non-coding RNAs play important roles in the regulation of gene expression in response to developmental and environmental changes. Non-coding RNAs in prokaryotes can be manipulated to develop more effective antibacterial drugs for human or animal use.
RNA...
Three main types of RNA are involved in protein synthesis: messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). These RNAs perform diverse functions and can be broadly classified as protein-coding or non-coding RNA. Non-coding RNAs play important roles in the regulation of gene expression in response to developmental and environmental changes. Non-coding RNAs in prokaryotes can be manipulated to develop more effective antibacterial drugs for human or animal use.
RNA...
Types of RNA
Three main types of RNA are involved in protein synthesis: messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). These RNAs perform diverse functions and can be broadly classified as protein-coding or non-coding RNA. Non-coding RNAs play important roles in regulating gene expression in response to developmental and environmental changes. Non-coding RNAs in prokaryotes can be manipulated to develop more effective antibacterial drugs for human or animal use.
RNA Performs Diverse...
RNA Performs Diverse...
Epigenetic Regulation
Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.
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...
X-chromosome...

