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PARN
Available structures PDB Ortholog search: PDBe RCSB List of PDB id codes 2A1R, 2A1S, 3CTR
Identifiers
Aliases	PARN, DAN, DKCB6, PFBMFT4, Poly(A)-specific ribonuclease
External IDs	OMIM: 604212; MGI: 1921358; HomoloGene: 31098; GeneCards: PARN; OMA:PARN - orthologs
Gene location (Human) Chr. Chromosome 16 (human) Band 16p13.12 Start 14,435,700 bp End 14,632,728 bp
Gene location (Mouse) Chr. Chromosome 16 (mouse) Band 16|16 A1 Start 13,355,824 bp End 13,486,034 bp
RNA expression pattern Bgee Human Mouse (ortholog) Top expressed in Achilles tendon corpus callosum testicle tonsil epithelium of colon gonad bone marrow cells smooth muscle tissue islet of Langerhans urinary bladder Top expressed in aortic valve ascending aorta renal corpuscle medullary collecting duct Paneth cell saccule ectoderm otic vesicle otic placode primitive streak More reference expression data BioGPS More reference expression data
Gene ontology Molecular function metal ion binding mRNA 3'-UTR binding protein binding nucleic acid binding nuclease activity exonuclease activity hydrolase activity protein kinase binding cation binding RNA binding poly(A)-specific ribonuclease activity telomerase RNA binding 3'-5'-exoribonuclease activity Cellular component cytoplasm cytosol nucleolus nucleus Biological process mRNA catabolic process female gamete generation regulation of mRNA stability RNA modification nuclear-transcribed mRNA catabolic process, nonsense-mediated decay nuclear-transcribed mRNA poly(A) tail shortening RNA phosphodiester bond hydrolysis, exonucleolytic telomerase RNA stabilization positive regulation of telomere maintenance via telomerase positive regulation of telomerase activity regulation of telomerase RNA localization to Cajal body ncRNA deadenylation box H/ACA RNA 3'-end processing miRNA catabolic process polyadenylation-dependent snoRNA 3'-end processing Sources:Amigo / QuickGO
Orthologs Species Human Mouse Entrez 5073 74108 Ensembl ENSG00000140694 ENSG00000274829 ENSMUSG00000022685 UniProt O95453 Q8VDG3 RefSeq (mRNA) NM_001134477 NM_001242992 NM_002582 NM_028761 NM_001358452 NM_001358453 RefSeq (protein) NP_001127949 NP_001229921 NP_002573 NP_083037 NP_001345381 NP_001345382 Location (UCSC) Chr 16: 14.44 – 14.63 Mb Chr 16: 13.36 – 13.49 Mb PubMed search
Wikidata
View/Edit Human View/Edit Mouse

Poly(A)-specific ribonuclease (PARN), also known as polyadenylate-specific ribonuclease or deadenylating nuclease (DAN), is an enzyme that in humans is encoded by the PARN gene.

Function

Exonucleolytic degradation of the poly(A) tail is often the first step in the decay of eukaryotic mRNAs. The amino acid sequence of poly(A)-specific ribonuclease shows homology to the RNase D family of 3'-exonucleases. The protein appears to be localized in both the nucleus and the cytoplasm. It is not stably associated with polysomes or ribosomal subunits. Hereditary mutations in PARN lead to the bone marrow failure disease dyskeratosis congenita which is caused by defective telomerase RNA processing and degradation in patients.

References

1. ^ ENSG00000274829 GRCh38: Ensembl release 89: ENSG00000140694, ENSG00000274829 – Ensembl, May 2017
2. ^ GRCm38: Ensembl release 89: ENSMUSG00000022685 – Ensembl, May 2017
3. "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
4. "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
5. Buiting K, Körner C, Ulrich B, Wahle E, Horsthemke B (May 2000). "The human gene for the poly(A)-specific ribonuclease (PARN) maps to 16p13 and has a truncated copy in the Prader-Willi/Angelman region on 15q11→q13". Cytogenetics and Cell Genetics. 87 (1–2): 125–31. doi:10.1159/000015378. PMID 10640832. S2CID 28498478.
6. ^ "Entrez Gene: PARN poly(A)-specific ribonuclease (deadenylation nuclease)".
7. Tummala H, Walne A, Collopy L, Cardoso S, de la Fuente J, Lawson S, Powell J, Cooper N, Foster A, Mohammed S, Plagnol V, Vulliamy T, Dokal I (May 2015). "Poly(A)-specific ribonuclease deficiency impacts telomere biology and causes dyskeratosis congenita". The Journal of Clinical Investigation. 125 (5): 2151–60. doi:10.1172/JCI78963. PMC 4463202. PMID 25893599.
8. Dhanraj S, Gunja SM, Deveau AP, Nissbeck M, Boonyawat B, Coombs AJ, Renieri A, Mucciolo M, Marozza A, Buoni S, Turner L, Li H, Jarrar A, Sabanayagam M, Kirby M, Shago M, Pinto D, Berman JN, Scherer SW, Virtanen A, Dror Y (November 2015). "Bone marrow failure and developmental delay caused by mutations in poly(A)-specific ribonuclease (PARN)". Journal of Medical Genetics. 52 (11): 738–48. doi:10.1136/jmedgenet-2015-103292. PMID 26342108. S2CID 19822046.
9. Stuart BD, Choi J, Zaidi S, Xing C, Holohan B, Chen R, Choi M, Dharwadkar P, Torres F, Girod CE, Weissler J, Fitzgerald J, Kershaw C, Klesney-Tait J, Mageto Y, Shay JW, Ji W, Bilguvar K, Mane S, Lifton RP, Garcia CK (May 2015). "Exome sequencing links mutations in PARN and RTEL1 with familial pulmonary fibrosis and telomere shortening". Nature Genetics. 47 (5): 512–7. doi:10.1038/ng.3278. PMC 4414891. PMID 25848748.
10. Shukla S, Schmidt JC, Goldfarb KC, Cech TR, Parker R (April 2016). "Inhibition of telomerase RNA decay rescues telomerase deficiency caused by dyskerin or PARN defects". Nature Structural & Molecular Biology. 23 (4): 286–92. doi:10.1038/nsmb.3184. PMC 4830462. PMID 26950371.
11. Tseng CK, Wang HF, Burns AM, Schroeder MR, Gaspari M, Baumann P (December 2015). "Human Telomerase RNA Processing and Quality Control". Cell Reports. 13 (10): 2232–43. doi:10.1016/j.celrep.2015.10.075. PMID 26628367.
12. Nguyen D, Grenier St-Sauveur V, Bergeron D, Dupuis-Sandoval F, Scott MS, Bachand F (December 2015). "A Polyadenylation-Dependent 3' End Maturation Pathway Is Required for the Synthesis of the Human Telomerase RNA". Cell Reports. 13 (10): 2244–57. doi:10.1016/j.celrep.2015.11.003. PMID 26628368.
13. Moon DH, Segal M, Boyraz B, Guinan E, Hofmann I, Cahan P, Tai AK, Agarwal S (December 2015). "Poly(A)-specific ribonuclease (PARN) mediates 3'-end maturation of the telomerase RNA component". Nature Genetics. 47 (12): 1482–8. doi:10.1038/ng.3423. PMC 4791094. PMID 26482878.

Further reading

• Körner CG, Wahle E (April 1997). "Poly(A) tail shortening by a mammalian poly(A)-specific 3'-exoribonuclease". The Journal of Biological Chemistry. 272 (16): 10448–56. doi:10.1074/jbc.272.16.10448. PMID 9099687.
• Körner CG, Wormington M, Muckenthaler M, Schneider S, Dehlin E, Wahle E (September 1998). "The deadenylating nuclease (DAN) is involved in poly(A) tail removal during the meiotic maturation of Xenopus oocytes". The EMBO Journal. 17 (18): 5427–37. doi:10.1093/emboj/17.18.5427. PMC 1170868. PMID 9736620.
• Dehlin E, Wormington M, Körner CG, Wahle E (March 2000). "Cap-dependent deadenylation of mRNA". The EMBO Journal. 19 (5): 1079–86. doi:10.1093/emboj/19.5.1079. PMC 305646. PMID 10698948.
• Martinez J, Ren YG, Thuresson AC, Hellman U, Astrom J, Virtanen A (August 2000). "A 54-kDa fragment of the Poly(A)-specific ribonuclease is an oligomeric, processive, and cap-interacting Poly(A)-specific 3' exonuclease". The Journal of Biological Chemistry. 275 (31): 24222–30. doi:10.1074/jbc.M001705200. PMID 10801819.
• Gao M, Fritz DT, Ford LP, Wilusz J (March 2000). "Interaction between a poly(A)-specific ribonuclease and the 5' cap influences mRNA deadenylation rates in vitro". Molecular Cell. 5 (3): 479–88. doi:10.1016/S1097-2765(00)80442-6. PMC 2811581. PMID 10882133.
• Gao M, Wilusz CJ, Peltz SW, Wilusz J (March 2001). "A novel mRNA-decapping activity in HeLa cytoplasmic extracts is regulated by AU-rich elements". The EMBO Journal. 20 (5): 1134–43. doi:10.1093/emboj/20.5.1134. PMC 145468. PMID 11230136.
• Martînez J, Ren YG, Nilsson P, Ehrenberg M, Virtanen A (July 2001). "The mRNA cap structure stimulates rate of poly(A) removal and amplifies processivity of degradation". The Journal of Biological Chemistry. 276 (30): 27923–9. doi:10.1074/jbc.M102270200. PMID 11359775.
• Copeland PR, Wormington M (June 2001). "The mechanism and regulation of deadenylation: identification and characterization of Xenopus PARN". RNA. 7 (6): 875–86. doi:10.1017/S1355838201010020. PMC 1370141. PMID 11424938.
• Chen CY, Gherzi R, Ong SE, Chan EL, Raijmakers R, Pruijn GJ, Stoecklin G, Moroni C, Mann M, Karin M (November 2001). "AU binding proteins recruit the exosome to degrade ARE-containing mRNAs". Cell. 107 (4): 451–64. doi:10.1016/S0092-8674(01)00578-5. PMID 11719186. S2CID 14817671.
• Ren YG, Martínez J, Virtanen A (February 2002). "Identification of the active site of poly(A)-specific ribonuclease by site-directed mutagenesis and Fe(2+)-mediated cleavage". The Journal of Biological Chemistry. 277 (8): 5982–7. doi:10.1074/jbc.M111515200. PMID 11742007.
• Andersen JS, Lyon CE, Fox AH, Leung AK, Lam YW, Steen H, Mann M, Lamond AI (January 2002). "Directed proteomic analysis of the human nucleolus". Current Biology. 12 (1): 1–11. Bibcode:2002CBio...12....1A. doi:10.1016/S0960-9822(01)00650-9. PMID 11790298. S2CID 14132033.
• Scherl A, Couté Y, Déon C, Callé A, Kindbeiter K, Sanchez JC, Greco A, Hochstrasser D, Diaz JJ (November 2002). "Functional proteomic analysis of human nucleolus". Molecular Biology of the Cell. 13 (11): 4100–9. doi:10.1091/mbc.E02-05-0271. PMC 133617. PMID 12429849.
• Lai WS, Kennington EA, Blackshear PJ (June 2003). "Tristetraprolin and its family members can promote the cell-free deadenylation of AU-rich element-containing mRNAs by poly(A) ribonuclease". Molecular and Cellular Biology. 23 (11): 3798–812. doi:10.1128/MCB.23.11.3798-3812.2003. PMC 155217. PMID 12748283.
• Lejeune F, Li X, Maquat LE (September 2003). "Nonsense-mediated mRNA decay in mammalian cells involves decapping, deadenylating, and exonucleolytic activities". Molecular Cell. 12 (3): 675–87. doi:10.1016/S1097-2765(03)00349-6. PMID 14527413.
• Gherzi R, Lee KY, Briata P, Wegmüller D, Moroni C, Karin M, Chen CY (June 2004). "A KH domain RNA binding protein, KSRP, promotes ARE-directed mRNA turnover by recruiting the degradation machinery". Molecular Cell. 14 (5): 571–83. doi:10.1016/j.molcel.2004.05.002. PMID 15175153.
• Lehner B, Sanderson CM (July 2004). "A protein interaction framework for human mRNA degradation". Genome Research. 14 (7): 1315–23. doi:10.1101/gr.2122004. PMC 442147. PMID 15231747.
• Ren YG, Kirsebom LA, Virtanen A (November 2004). "Coordination of divalent metal ions in the active site of poly(A)-specific ribonuclease". The Journal of Biological Chemistry. 279 (47): 48702–6. doi:10.1074/jbc.M403858200. PMID 15358788.

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