The exon junction complex (EJC), which contains four core components, eukaryotic initiation factor 4AIII (eIF4AIII), MAGO/NASHI (MAGO), Y14/Tsunagi/RNA-binding protein 8A, and Barentsz/Metastatic lymph node 51, is formed in both nucleus and cytoplasm, and plays important roles in gene expression. | Two highly similar DEAD box proteins OsRH2 and OsRH34 homologous to eukaryotic initiation factor 4AIII play roles of the exon junction complex in regulating growth and development in rice