RP9

Retinitis pigmentosa 9 (autosomal dominant)
Identifiers
Symbols	RP9 ; PAP-1; PAP1
External IDs	OMIM: 607331 MGI: 2157166 HomoloGene: 10290 GeneCards: RP9 Gene
Gene ontology Molecular function • protein binding • zinc ion binding • poly(A) RNA binding Cellular component • nucleus • nucleoplasm • cytoplasm • signal recognition particle receptor complex Biological process • RNA splicing • cognition Sources: Amigo / QuickGO
RNA expression pattern
More reference expression data
Orthologs
Species	Human	Mouse
Entrez	6100	55934
Ensembl	ENSG00000164610	ENSMUSG00000032239
UniProt	Q8TA86	P97762
RefSeq (mRNA)	NM_203288	NM_018739
RefSeq (protein)	NP_976033	NP_061209
Location (UCSC)	Chr 7: 33.09 – 33.11 Mb	Chr 9: 22.45 – 22.47 Mb
PubMed search

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)".
2. 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.
• 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.
• 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.
• 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.
• 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.