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Fig. 2. (A) SELEX (systematic evolution of ligands by exponential enrichment) for in vitro identification of SR-binding RNA motifs. A random RNA library was used for the selection of binding RNA sequences. (B) Functional SELEX. Reporter-based in vitro and in vivo identification of splicing regulatory elements. ESEs (Exonic Splicing Enhancers) can be selected in the reporter as shown here. (C) CLIP-Seq (Cross-linking and immunoprecipitation-sequencing) for global identification of SR-binding motifs in target RNAs.
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