nuclear-transcribed mRNA catabolic process, 3'-5' exonucleolytic nonsense-mediated decay
nuclear-transcribed mrna catabolic process, 3'-5' exonucleolytic nonsense-mediated decay
The chemical reactions and pathways resulting in the breakdown of the nuclear-transcribed mRNA transcript body of an mRNA in which an amino-acid codon has changed to a nonsense codon; occurs when the 3' end is not protected by a 3'-poly(A) tail; degradation proceeds in the 3' to 5' direction.