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Chromatin Isolation by RNA Purification ChIRP
Published on: March 25, 2012
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Capturing Endogenous Long Noncoding RNAs and Their Binding Proteins Using Chromatin Isolation by RNA Purification.
1Department of Life Sciences, School of Natural Sciences, Sogang University, Seoul, Republic of Korea. jkimatsgu@sogang.ac.kr.
Methods in Molecular Biology (Clifton, N.J.)
|August 21, 2021
Summary
This study introduces a method to identify proteins interacting with long noncoding RNAs (lncRNAs). The chromatin isolation by RNA purification (ChIRP) technique captures endogenous lncRNAs for studying their biological functions.
Area of Science:
- Molecular Biology
- Genomics
- RNA Biology
Background:
- Long noncoding RNAs (lncRNAs) are crucial regulators of gene expression.
- Understanding lncRNA-protein interactions is key to elucidating their molecular functions.
- Current methods for identifying lncRNA-binding proteins have limitations, including potential artifacts.
Purpose of the Study:
- To describe a detailed protocol for chromatin isolation by RNA purification (ChIRP).
- To enable the identification of physiologically relevant protein interactors of endogenous long noncoding RNAs.
- To provide a robust method for studying lncRNA function in mammalian cells and tissues.
Main Methods:
- Chromatin isolation by RNA purification (ChIRP) protocol.
- Utilizes biotinylated antisense DNA oligonucleotides to capture endogenous lncRNAs.
- Applicable to mammalian cell lines and mouse tissues.
Main Results:
- Successful capture of endogenous long noncoding RNAs (lncRNAs).
- Enables the subsequent identification of associated proteins.
- Overcomes potential artifacts associated with tagged lncRNAs.
Conclusions:
- Chromatin isolation by RNA purification (ChIRP) is an effective method for identifying endogenous lncRNA-binding proteins.
- This technique facilitates the study of the molecular mechanisms underlying lncRNA functions.
- The protocol is suitable for both cell lines and tissue samples, enhancing its applicability.
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