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POU domain, class 3, transcription factor 2
Symbols POU3F2; BRN2; OCT7; OTF7; POUF3
External IDs OMIM600494 MGI101895 HomoloGene4095 GeneCards: POU3F2 Gene
RNA expression pattern
PBB GE POU3F2 207084 at tn.png
More reference expression data
Species Human Mouse
Entrez 5454 18992
Ensembl ENSG00000184486 ENSMUSG00000052621
UniProt P20265 P31360
RefSeq (mRNA) NM_005604 NM_008899
RefSeq (protein) NP_005595 NP_032925
Location (UCSC) Chr 6:
99.39 - 99.39 Mb
Chr 4:
22.58 - 22.58 Mb
PubMed search [1] [2]

POU domain, class 3, transcription factor 2 is a protein that in humans is encoded by the POU3F2 gene.[1][2]

N-Oct-3 is a protein belonging to a large family of transcription factors that bind to the octameric DNA sequence ATGCAAAT. Most of these proteins share a highly homologous region, referred to as the POU domain, which occurs in several mammalian transcription factors, including the octamer-binding proteins Oct1 (POU2F1; MIM 164175) and Oct2 (POU2F2; MIM 164176), and the pituitary protein Pit1 (PIT1; MIM 173110). Class III POU genes are expressed predominantly in the CNS. It is likely that CNS-specific transcription factors such as these play an important role in mammalian neurogenesis by regulating their diverse patterns of gene expression.[supplied by OMIM][2]



POU3F2 has been shown to interact with PQBP1.[3]

See also


  1. ^ Schreiber E, Tobler A, Malipiero U, Schaffner W, Fontana A (Mar 1993). "cDNA cloning of human N-Oct3, a nervous-system specific POU domain transcription factor binding to the octamer DNA motif". Nucleic Acids Res 21 (2): 253–8. PMID 8441633.  
  2. ^ a b "Entrez Gene: POU3F2 POU domain, class 3, transcription factor 2".  
  3. ^ Waragai, M; Lammers C H, Takeuchi S, Imafuku I, Udagawa Y, Kanazawa I, Kawabata M, Mouradian M M, Okazawa H (Jun. 1999). "PQBP-1, a novel polyglutamine tract-binding protein, inhibits transcription activation by Brn-2 and affects cell survival". Hum. Mol. Genet. (ENGLAND) 8 (6): 977–87. ISSN 0964-6906. PMID 10332029.  

Further reading

  • Hara Y, Rovescalli AC, Kim Y, Nirenberg M (1992). "Structure and evolution of four POU domain genes expressed in mouse brain.". Proc. Natl. Acad. Sci. U.S.A. 89 (8): 3280–4. doi:10.1073/pnas.89.8.3280. PMID 1565620.  
  • Schreiber E, Harshman K, Kemler I, et al. (1990). "Astrocytes and glioblastoma cells express novel octamer-DNA binding proteins distinct from the ubiquitous Oct-1 and B cell type Oct-2 proteins.". Nucleic Acids Res. 18 (18): 5495–503. doi:10.1093/nar/18.18.5495. PMID 2216722.  
  • He X, Treacy MN, Simmons DM, et al. (1989). "Expression of a large family of POU-domain regulatory genes in mammalian brain development.". Nature 340 (6228): 35–41. doi:10.1038/340035a0. PMID 2739723.  
  • Eisen T, Easty DJ, Bennett DC, Goding CR (1995). "The POU domain transcription factor Brn-2: elevated expression in malignant melanoma and regulation of melanocyte-specific gene expression.". Oncogene 11 (10): 2157–64. PMID 7478537.  
  • Atanasoski S, Toldo SS, Malipiero U, et al. (1995). "Isolation of the human genomic brain-2/N-Oct 3 gene (POUF3) and assignment to chromosome 6q16.". Genomics 26 (2): 272–80. doi:10.1016/0888-7543(95)80211-4. PMID 7601453.  
  • Thomson JA, Murphy K, Baker E, et al. (1995). "The brn-2 gene regulates the melanocytic phenotype and tumorigenic potential of human melanoma cells.". Oncogene 11 (4): 691–700. PMID 7651733.  
  • Atanasoski S, Schreiber E, Fontana A, Herr W (1997). "N-Oct 5 is generated by in vitro proteolysis of the neural POU-domain protein N-Oct 3.". Oncogene 14 (11): 1287–94. doi:10.1038/sj.onc.1200953. PMID 9178889.  
  • Petersenn S, Rasch AC, Heyens M, Schulte HM (1998). "Structure and regulation of the human growth hormone-releasing hormone receptor gene.". Mol. Endocrinol. 12 (2): 233–47. doi:10.1210/me.12.2.233. PMID 9482665.  
  • Kuhlbrodt K, Herbarth B, Sock E, et al. (1998). "Cooperative function of POU proteins and SOX proteins in glial cells.". J. Biol. Chem. 273 (26): 16050–7. doi:10.1074/jbc.273.26.16050. PMID 9632656.  
  • Waragai M, Lammers CH, Takeuchi S, et al. (1999). "PQBP-1, a novel polyglutamine tract-binding protein, inhibits transcription activation by Brn-2 and affects cell survival.". Hum. Mol. Genet. 8 (6): 977–87. doi:10.1093/hmg/8.6.977. PMID 10332029.  
  • Smit DJ, Smith AG, Parsons PG, et al. (2000). "Domains of Brn-2 that mediate homodimerization and interaction with general and melanocytic transcription factors.". Eur. J. Biochem. 267 (21): 6413–22. doi:10.1046/j.1432-1327.2000.01737.x. PMID 11029584.  
  • 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. PMID 12477932.  
  • Jaegle M, Ghazvini M, Mandemakers W, et al. (2003). "The POU proteins Brn-2 and Oct-6 share important functions in Schwann cell development.". Genes Dev. 17 (11): 1380–91. doi:10.1101/gad.258203. PMID 12782656.  
  • Mungall AJ, Palmer SA, Sims SK, et al. (2003). "The DNA sequence and analysis of human chromosome 6.". Nature 425 (6960): 805–11. doi:10.1038/nature02055. PMID 14574404.  
  • 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.  
  • Goodall J, Martinozzi S, Dexter TJ, et al. (2004). "Brn-2 expression controls melanoma proliferation and is directly regulated by beta-catenin.". Mol. Cell. Biol. 24 (7): 2915–22. doi:10.1128/MCB.24.7.2915-2922.2004. PMID 15024079.  
  • Goodall J, Wellbrock C, Dexter TJ, et al. (2004). "The Brn-2 transcription factor links activated BRAF to melanoma proliferation.". Mol. Cell. Biol. 24 (7): 2923–31. doi:10.1128/MCB.24.7.2923-2931.2004. PMID 15024080.  
  • 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. PMID 15489334.  
  • Cobrinik D, Francis RO, Abramson DH, Lee TC (2007). "Rb induces a proliferative arrest and curtails Brn-2 expression in retinoblastoma cells.". Mol. Cancer 5: 72. doi:10.1186/1476-4598-5-72. PMID 17163992.  

External links

This article incorporates text from the United States National Library of Medicine, which is in the public domain.



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