Cross-Linking Immunoprecipitation and qPCR (CLIP-qPCR) Analysis to Map Interactions Between Long Noncoding RNAs and RNA-Binding Proteins
Mammalian cells express a wide range of transcripts, some protein-coding RNAs (mRNA) and many noncoding (nc) RNAs. Long (l)ncRNAscan modulates protein expression patterns by regulating gene transcription, pre-mRNA splicing, mRNA export, mRNA degradation, protein translation, and protein ubiquitination. Given the growing recognition that lncRNAs have a robust impact upon gene expression, there is rising interest in elucidating the levels and regulation of lncRNAs. A number of high-throughput methods have been developed recently to map the interaction of lncRNAs and RNA-binding proteins (RBPs). However, few of these approaches are suitable for mapping and quantifying RBP-lncRNA interactions. Here, we describe the recently developed method CLIP-qPCR (cross-linking and immunoprecipitation followed by reverse transcription and quantitative PCR) for mapping and quantifying RBP-lncRNA interactions.
Key wordsCLIP lncRNA RBP Ribonucleoprotein complexes qPCR
JHY and MG were supported by the National Institute on Aging Intramural Research Program, National Institutes of Health and startup fund from Medical University of South Carolina.
- 14.Hafner M, Landthaler M, Burger L, Khorshid M, Hausser J, Berninger P, Rothballer A, Ascano M Jr, Jungkamp AC, Munschauer M, Ulrich A, Wardle GS, Dewell S, Zavolan M, Tuschl T (2010) Transcriptome-wide identification of RNA-binding protein and microRNA target sites by PAR-CLIP. Cell 141:129–141CrossRefPubMedPubMedCentralGoogle Scholar