RNA exonuclease that binds to the 3'-end of histone mRNAs and degrades them, suggesting that it plays an essential role in histone mRNA decay after replication. A 2' and 3'-hydroxyl groups at the last nucleotide of the histone 3'-end is required for efficient degradation of RNA substrates. Also able to degrade the 3'-overhangs of short interfering RNAs (siRNAs) in vitro, suggesting a possible role as regulator of RNA interference (RNAi). Requires for binding the 5'-ACCCA-3' sequence present in stem-loop structure. Able to bind other mRNAs. Required for 5.8S rRNA 3'-end processing. Also binds to 5.8s ribosomal RNA. Binds with high affinity to the stem-loop structure of replication-dependent histone pre-mRNAs.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
Protein Aliases: 3 ' exoribonuclease; 3' exoribonuclease; 3'-5' exonuclease ERI1; 3'-5' exoribonuclease 1; enhanced RNAi protein 1; enhanced RNAi three prime mRNA exonuclease homolog 1; Eri-1 homolog; HEXO; histone mRNA 3' end-specific exonuclease; Histone mRNA 3'-end-specific exoribonuclease; Histone mRNA 3'-exonuclease 1; protei; Protein 3'hExo; three prime histone mRNA exonuclease 1; three prime mRNA exonuclease 1
Gene Aliases: 3'EXO; 3'HEXO; 3110010F15Rik; eri-1; ERI1; HEXO; RGD1308378; THEX1