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iCLIP - Transcriptome-wide Mapping of Protein-RNA Interactions with Individual Nucleotide Resolution
Published on: April 30, 2011
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iCLIP: protein-RNA interactions at nucleotide resolution.
Ina Huppertz1, Jan Attig1, Andrea D'Ambrogio1
1Department of Molecular Neuroscience, UCL Institute of Neurology, Queen Square, London WC1N 3BG, UK; MRC Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge CB2 0QH, UK.
Methods (San Diego, Calif.)
|November 5, 2013
Summary
This study details an improved individual-nucleotide resolution UV crosslinking and immunoprecipitation (iCLIP) protocol. The optimized method enhances the precise identification of RNA-binding protein (RBP) binding sites for better understanding gene regulation.
Area of Science:
- Molecular Biology
- Genomics
- Biochemistry
Background:
- RNA-binding proteins (RBPs) regulate gene expression post-transcriptionally.
- Understanding RBP binding sites is crucial for elucidating molecular functions and roles in development and disease.
Purpose of the Study:
- To describe an improved individual-nucleotide resolution UV crosslinking and immunoprecipitation (iCLIP) protocol.
- To provide guidance on critical optimization and control experiments for applying iCLIP to new RBPs.
Main Methods:
- Individual-nucleotide resolution UV crosslinking and immunoprecipitation (iCLIP).
- Intramolecular cDNA circularization for analyzing truncated cDNAs at protein-RNA crosslink sites.
- Protocol optimization and validation for new RNA-binding proteins.
Main Results:
- The improved iCLIP protocol enhances resolution and specificity in identifying protein-RNA crosslink sites.
- Detailed optimization strategies and control experiments are presented.
- The method facilitates genome-wide mapping of RBP binding sites.
Conclusions:
- The enhanced iCLIP protocol offers a robust approach for precise genome-wide mapping of RNA-binding protein interactions.
- This improved method is essential for advancing the study of post-transcriptional gene regulation and its implications in health and disease.
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