NOL1

NOP2 nucleolar protein homolog (yeast)
Identifiers
Symbols	NOP2; MGC117384; MGC149287; MGC149288; NOL1; NOP120; NSUN1; p120
External IDs	OMIM: 164031 MGI: 107891 HomoloGene: 6817 GeneCards: NOP2 Gene
Gene Ontology Molecular function • RNA binding • protein binding • S-adenosylmethionine-dependent methyltransferase activity • transferase activity Cellular component • nucleus • nucleolus Biological process • rRNA processing • positive regulation of cell proliferation Sources: Amigo / QuickGO
RNA expression pattern
More reference expression data
Orthologs
Species	Human	Mouse
Entrez	4839	110109
Ensembl	ENSG00000111641	ENSMUSG00000038279
UniProt	P46087	n/a
RefSeq (mRNA)	NM_001033714.1	NM_138747.2
RefSeq (protein)	NP_001028886.1	NP_620086.2
Location (UCSC)	Chr 12: 6.67 – 6.68 Mb	Chr 6: 125.08 – 125.09 Mb
PubMed search	[1]	[2]

Putative ribosomal RNA methyltransferase NOP2 is an enzyme that in humans is encoded by the NOP2 gene.^[1][1][2]

The protein encoded by this gene is a nucleolar antigen expressed in proliferating cells. It is not detectable in non-proliferating normal tissue but is detectable in many human tumors.^[3]

Overexpression of p120 leads to malignant transformation of 3T3 cells while treatment with antisense p120 mRNA causes the transformed cells to revert to their original non-malignant phenotype.^[4]

The p120 protein displays a dramatic increase in expression at the G1/S transition suggesting that p120 regulates the cell cycle and nucleolar activity that is required for cell proliferation.^[5]

Interactions

NOL1 has been shown to interact with MCRS1.^[6]

References

1. ^ ^{a b} Baens M, Chaffanet M, Aerssens J, Cassiman JJ, Marynen P (October 1994). "Assignment of the gene for the human proliferating cell nucleolar protein P120 (NOL1) to chromosome 12p13 by fluorescence in situ hybridization and polymerase chain reaction with somatic cell hybrids". Genomics 21 (1): 296–7. doi:10.1006/geno.1994.1267. PMID 8088812. 
2. ^ "Entrez Gene: NOL1 nucleolar protein 1, 120kDa". http://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene&Cmd=ShowDetailView&TermToSearch=4839. 
3. ^ Freeman JW, Busch RK, Gyorkey F, Gyorkey P, Ross BE, Busch H (1 March 1988). "Identification and characterization of a human proliferation-associated nucleolar antigen with a molecular weight of 120,000 expressed in early G1 phase". Cancer Res. 48 (5): 1244–51. PMID 3422591. http://cancerres.aacrjournals.org/cgi/content/abstract/48/5/1244. 
4. ^ Perlaky L, Valdez BC, Busch RK, Larson RG, Jhiang SM, Zhang WW, Brattain M, Busch H (January 1992). "Increased growth of NIH/3T3 cells by transfection with human p120 complementary DNA and inhibition by a p120 antisense construct". Cancer Res. 52 (2): 428–36. PMID 1728415. http://cancerres.aacrjournals.org/cgi/content/abstract/52/2/428. 
5. ^ Fonagy A, Swiderski C, Wilson A, Bolton W, Kenyon N, Freeman JW (January 1993). "Cell cycle regulated expression of nucleolar antigen P120 in normal and transformed human fibroblasts". J. Cell. Physiol. 154 (1): 16–27. doi:10.1002/jcp.1041540104. PMID 8419402. 
6. ^ Ren, Y; Busch R K, Perlaky L, Busch H (May. 1998). "The 58-kDa microspherule protein (MSP58), a nucleolar protein, interacts with nucleolar protein p120". Eur. J. Biochem. (GERMANY) 253 (3): 734–42. doi:10.1046/j.1432-1327.1998.2530734.x. ISSN 0014-2956. PMID 9654073. 

Further reading

• Busch H (1990). "The final common pathway of cancer.". Cancer Res. 50 (16): 4830–8. PMID 2199030. 
• Valdez BC, Perlaky L, Saijo Y, et al. (1992). "A region of antisense RNA from human p120 cDNA with high homology to mouse p120 cDNA inhibits NIH 3T3 proliferation.". Cancer Res. 52 (20): 5681–6. PMID 1394192. 
• Larson RG, Henning D, Haidar MA, et al. (1990). "Genomic structure of the human proliferating cell nucleolar protein P120.". Cancer Commun. 2 (2): 63–71. PMID 2372471. 
• Fonagy A, Henning D, Jhiang S, et al. (1990). "Cloning of the cDNA and sequence of the human proliferating-cell nucleolar protein P120.". Cancer Commun. 1 (4): 243–51. PMID 2576976. 
• Freeman JW, Busch RK, Gyorkey F, et al. (1988). "Identification and characterization of a human proliferation-associated nucleolar antigen with a molecular weight of 120,000 expressed in early G1 phase.". Cancer Res. 48 (5): 1244–51. PMID 3422591. 
• Valdez BC, Perlaky L, Henning D, et al. (1994). "Identification of the nuclear and nucleolar localization signals of the protein p120. Interaction with translocation protein B23.". J. Biol. Chem. 269 (38): 23776–83. PMID 8089149. 
• Jallal B, Mossie K, Vasiloudis G, et al. (1997). "The receptor-like protein-tyrosine phosphatase DEP-1 is constitutively associated with a 64-kDa protein serine/threonine kinase.". J. Biol. Chem. 272 (18): 12158–63. doi:10.1074/jbc.272.18.12158. PMID 9115287. 
• Ren Y, Busch RK, Perlaky L, Busch H (1998). "The 58-kDa microspherule protein (MSP58), a nucleolar protein, interacts with nucleolar protein p120.". Eur. J. Biochem. 253 (3): 734–42. doi:10.1046/j.1432-1327.1998.2530734.x. PMID 9654073. 
• Colombo E, Marine JC, Danovi D, et al. (2002). "Nucleophosmin regulates the stability and transcriptional activity of p53.". Nat. Cell Biol. 4 (7): 529–33. doi:10.1038/ncb814. PMID 12080348. 
• Holsinger LJ, Ward K, Duffield B, et al. (2002). "The transmembrane receptor protein tyrosine phosphatase DEP1 interacts with p120(ctn).". Oncogene 21 (46): 7067–76. doi:10.1038/sj.onc.1205858. PMID 12370829. 
• Scherl A, Couté Y, Déon C, et al. (2003). "Functional Proteomic Analysis of Human Nucleolus". Mol. Biol. Cell 13 (11): 4100–9. doi:10.1091/mbc.E02-05-0271. PMC 133617. PMID 12429849. http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=133617. 
• 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. 
• Ota T, Suzuki Y, Nishikawa T, et al. (2004). "Complete sequencing and characterization of 21,243 full-length human cDNAs". Nat. Genet. 36 (1): 40–5. doi:10.1038/ng1285. PMID 14702039. 
• Beausoleil SA, Jedrychowski M, Schwartz D, et al. (2004). "Large-scale characterization of HeLa cell nuclear phosphoproteins". Proc. Natl. Acad. Sci. U.S.A. 101 (33): 12130–5. doi:10.1073/pnas.0404720101. PMC 514446. PMID 15302935. http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=514446. 
• Kimura K, Wakamatsu A, Suzuki Y, et al. (2006). "Diversification of transcriptional modulation: Large-scale identification and characterization of putative alternative promoters of human genes". Genome Res. 16 (1): 55–65. doi:10.1101/gr.4039406. PMC 1356129. PMID 16344560. http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=1356129. 
• Nousiainen M, Silljé HH, Sauer G, et al. (2006). "Phosphoproteome analysis of the human mitotic spindle". Proc. Natl. Acad. Sci. U.S.A. 103 (14): 5391–6. doi:10.1073/pnas.0507066103. PMC 1459365. PMID 16565220. http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=1459365. 
• Beausoleil SA, Villén J, Gerber SA, et al. (2006). "A probability-based approach for high-throughput protein phosphorylation analysis and site localization". Nat. Biotechnol. 24 (10): 1285–92. doi:10.1038/nbt1240. PMID 16964243. 
• Olsen JV, Blagoev B, Gnad F, et al. (2006). "Global, in vivo, and site-specific phosphorylation dynamics in signaling networks". Cell 127 (3): 635–48. doi:10.1016/j.cell.2006.09.026. PMID 17081983.