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An emergent strategy for the transcriptome-wide study of protein–RNA interactions is CLIP-seq (crosslinking and immunoprecipitation followed by high-throughput sequencing). We combined CLIP-seq and mRNA-seq to identify direct RNA binding sites of eIF4AIII in human cells. This RNA helicase is a core constituant of the Exon Junction Complex (EJC), a multifunctional protein complex associated with spliced...
Exon 6B from the chicken β-tropomyosin pre-mRNA is alternatively spliced during myogenic differentiation. Exon 6B is excluded in mRNA from myoblasts and included in mRNA from myotubes. We investigated the regulation of exon 6B inclusion ex vivo in a quail myogenic cell line, which behaves as myoblasts in undifferentiated state and as myotubes after differentiation. We show that the β-tropomyosin exon...
Nonsense-mediated mRNA decay (NMD) is an mRNA surveillance pathway which ensures the rapid degradation of mRNAs containing premature translation termination codons (PTCs or nonsense codons), thereby preventing the accumulation of truncated and potentially harmful proteins. In this way, the NMD pathway contributes to suppressing or exacerbating the clinical manifestations of specific human genetic...
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