EOG8Q2GW0 GO:0000184 26/94 nuclear-transcribed mRNA catabolic process, nonsense-mediated decay biological_process "The nonsense-mediated decay pathway for nuclear-transcribed mRNAs degrades mRNAs in which an amino-acid codon has changed to a nonsense codon; this prevents the translation of such mRNAs into truncated, and potentially harmful, proteins." [GOC:krc, GOC:ma, PMID:10025395]