[biological_process] nuclear mRNA surveillance of mRNA 3'-end processing <sep> nuclear polyadenylation-dependent CUT catabolic process <sep> nuclear polyadenylation-dependent rRNA catabolic process <sep> nuclear polyadenylation-dependent snoRNA catabolic process <sep> nuclear polyadenylation-dependent snRNA catabolic process <sep> polyadenylation-dependent RNA catabolic process <sep> RNA fragment catabolic process <sep> TRAMP-dependent tRNA surveillance pathway <sep> tRNA modification