The exon junction complex (EJC) has a crucial role in various post-transcriptional control mechanisms. CLIP-Seq analysis of the human EJC component eIF4AIII has revealed peaks in canonical EJC-binding regions, including ~24 nucleotides upstream of exon junctions. Surprisingly, EJCs are also present elsewhere in the transcriptome, uncovering an unexpected heterogeneity of EJC association with mRNAs.
- Jérôme Saulière
- Valentine Murigneux
- Hervé Le Hir