RP9

Retinitis pigmentosa 9 (autosomal dominant)
Identifiers
Symbols	RP9; PAP-1
External IDs	OMIM: 607331 MGI: 2157166 HomoloGene: 10290 GeneCards: RP9 Gene
Gene Ontology Molecular function • nucleic acid binding • protein binding • zinc ion binding • metal ion binding Cellular component • nucleus • signal recognition particle receptor complex Biological process • RNA splicing Sources: Amigo / QuickGO
RNA expression pattern
More reference expression data
Orthologs
Species	Human	Mouse
Entrez	6100	55934
Ensembl	ENSG00000164610	ENSMUSG00000032239
UniProt	Q8TA86	Q3TH81
RefSeq (mRNA)	NM_203288	NM_018739.2
RefSeq (protein)	NP_976033	NP_061209.1
Location (UCSC)	Chr 7: 33.13 – 33.15 Mb	Chr 9: 22.22 – 22.27 Mb
PubMed search	[1]	[2]

Retinitis pigmentosa 9 (autosomal dominant), also known as RP9 or PAP-1, is a protein which in humans is encoded by the RP9 gene.^[1]

Function

The removal of introns from nuclear pre-mRNAs occurs on a complex called a spliceosome, which is made up of 4 small nuclear ribonucleoprotein (snRNP) particles and an undefined number of transiently associated splicing factors. The exact role of PAP-1 in splicing is not fully understood, but it is thought that PAP-1 localizes in nuclear speckles containing the splicing factor SC35 and interacts directly with another splicing factor, U2AF35.^[2]

Clinical significance

Mutations in PAP1 underlie autosomal dominant retinitis pigmentosa mapped to the RP9 gene locus.^[3]

Interactions

RP9 has been shown to interact with U2 small nuclear RNA auxiliary factor 1.^[2]

References

1. ^ "Entrez Gene: RP9 retinitis pigmentosa 9 (autosomal dominant)". http://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene&Cmd=ShowDetailView&TermToSearch=6100. 
2. ^ ^{a b} Maita H, Kitaura H, Keen TJ, Inglehearn CF, Ariga H, Iguchi-Ariga SM (November 2004). "PAP-1, the mutated gene underlying the RP9 form of dominant retinitis pigmentosa, is a splicing factor". Exp. Cell Res. 300 (2): 283–96. doi:10.1016/j.yexcr.2004.07.029. PMID 15474994. 
3. ^ Keen TJ, Hims MM, McKie AB, Moore AT, Doran RM, Mackey DA, Mansfield DC, Mueller RF, Bhattacharya SS, Bird AC, Markham AF, Inglehearn CF (April 2002). "Mutations in a protein target of the Pim-1 kinase associated with the RP9 form of autosomal dominant retinitis pigmentosa". Eur. J. Hum. Genet. 10 (4): 245–9. doi:10.1038/sj.ejhg.5200797. PMID 12032732. 

Further reading

• Inglehearn C, Keen TJ, al-Maghtheh M, Bhattacharya S (1994). "Loci for autosomal dominant retinitis pigmentosa and dominant cystoid macular dystrophy on chromosome 7p are not allelic.". Am. J. Hum. Genet. 55 (3): 581–2. PMC 1918416. PMID 8079997. http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=1918416. 
• Inglehearn CF, Carter SA, Keen TJ, et al. (1993). "A new locus for autosomal dominant retinitis pigmentosa on chromosome 7p.". Nat. Genet. 4 (1): 51–3. doi:10.1038/ng0593-51. PMID 8513323. 
• Maita H, Harada Y, Nagakubo D, et al. (2000). "PAP-1, a novel target protein of phosphorylation by pim-1 kinase.". Eur. J. Biochem. 267 (16): 5168–78. doi:10.1046/j.1432-1327.2000.01585.x. PMID 10931201. 
• Keen TJ, Hims MM, McKie AB, et al. (2002). "Mutations in a protein target of the Pim-1 kinase associated with the RP9 form of autosomal dominant retinitis pigmentosa.". Eur. J. Hum. Genet. 10 (4): 245–9. doi:10.1038/sj.ejhg.5200797. PMID 12032732. 
• Strausberg RL, Feingold EA, Grouse LH, et al. (2003). "Generation and initial analysis of more than 15,000 full-length human and mouse cDNA sequences.". Proc. Natl. Acad. Sci. U.S.A. 99 (26): 16899–903. doi:10.1073/pnas.242603899. PMC 139241. PMID 12477932. http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=139241. 
• Scherer SW, Cheung J, MacDonald JR, et al. (2003). "Human chromosome 7: DNA sequence and biology.". Science 300 (5620): 767–72. doi:10.1126/science.1083423. PMC 2882961. PMID 12690205. http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=2882961. 
• Maita H, Kitaura H, Keen TJ, et al. (2004). "PAP-1, the mutated gene underlying the RP9 form of dominant retinitis pigmentosa, is a splicing factor.". Exp. Cell Res. 300 (2): 283–96. doi:10.1016/j.yexcr.2004.07.029. PMID 15474994. 
• Gerhard DS, Wagner L, Feingold EA, et al. (2004). "The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC).". Genome Res. 14 (10B): 2121–7. doi:10.1101/gr.2596504. PMC 528928. PMID 15489334. http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=528928. 
• Maita H, Kitaura H, Ariga H, Iguchi-Ariga SM (2005). "Association of PAP-1 and Prp3p, the products of causative genes of dominant retinitis pigmentosa, in the tri-snRNP complex.". Exp. Cell Res. 302 (1): 61–8. doi:10.1016/j.yexcr.2004.08.022. PMID 15541726. 
• Kuroda TS, Maita H, Tabata T, et al. (2004). "A novel nucleolar protein, PAPA-1, induces growth arrest as a result of cell cycle arrest at the G1 phase.". Gene 340 (1): 83–98. doi:10.1016/j.gene.2004.05.025. PMID 15556297. 
• Maita H, Kitaura H, Ariga H, Iguchi-Ariga SM (2005). "CIR, a corepressor of CBF1, binds to PAP-1 and effects alternative splicing.". Exp. Cell Res. 303 (2): 375–87. doi:10.1016/j.yexcr.2004.10.012. PMID 15652350.