| Gene Symbol | PARN |
|---|---|
| Entrez Gene | 5073 |
| Alt Symbol | DAN |
| Species | Human |
| Gene Type | protein-coding |
| Description | poly(A)-specific ribonuclease |
| Other Description | deadenylating nuclease|deadenylation nuclease|poly(A)-specific ribonuclease (deadenylation nuclease)|poly(A)-specific ribonuclease PARN|polyadenylate-specific ribonuclease |
| Swissprots | B4DWR4 O95453 B4E1H6 B4DDG8 B4DSB0 B2RCB3 |
| Accessions | EAW85110 EAW85111 O95453 AJ005698 CAA06683 AK023866 BAG51231 AK293189 BAG56729 AK299653 BAG61572 AK301648 BAG63126 AK303348 BAG64410 AK315020 BAG37510 AW338742 BC044763 BC050029 AAH50029 BF435512 DA308295 JF432357 ADZ15574 XM_011522510 XP_011520812 XM_011522511 XP_011520813 XM_011522512 XP_011520814 XM_011522513 XP_011520815 XM_011522514 XP_011520816 XM_011546699 XP_011545001 XM_011546700 XP_011545002 XM_011546701 XP_011545003 XM_011546702 XP_011545004 XM_011546703 XP_011545005 NM_001134477 NP_001127949 NM_001242992 NP_001229921 NM_002582 NP_002573 |
| Function | 3'-exoribonuclease that has a preference for poly(A) tails of mRNAs, thereby efficiently degrading poly(A) tails. Exonucleolytic degradation of the poly(A) tail is often the first step in the decay of eukaryotic mRNAs and is also used to silence certain maternal mRNAs translationally during oocyte maturation and early embryonic development. Interacts with both the 3'-end poly(A) tail and the 5'-end cap structure during degradation, the interaction with the cap structure being required for an efficient degradation of poly(A) tails. Involved in nonsense-mediated mRNA decay, a critical process of selective degradation of mRNAs that contain premature stop codons. Also involved in degradation of inherently unstable mRNAs that contain AU-rich elements (AREs) in their 3'-UTR, possibly via its interaction with KHSRP. Probably mediates the removal of poly(A) tails of AREs mRNAs, which constitutes the first step of destabilization. {ECO:0000269|PubMed:10882133, ECO:0000269|PubMed:11359775, ECO:0 |
| Subcellular Location | Nucleus. Cytoplasm. Nucleus, nucleolus. Note=Some nuclear fraction is nucleolar. |
| Tissue Specificity | Ubiquitous. {ECO:0000269|PubMed:10640832, ECO:0000269|PubMed:9736620}. |
| Top Pathways | RNA degradation |