POU3F2

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

POU3F2
Identifiers
Aliases	POU3F2, BRN2, N-Oct3, OCT7, OTF-7, OTF7, POUF3, brn-2, oct-7, POU class 3 homeobox 2
External IDs	OMIM: 600494; MGI: 101895; HomoloGene: 4095; GeneCards: POU3F2; OMA:POU3F2 - orthologs
Gene location (Human) Chr. Chromosome 6 (human) Band 6q16.1 Start 98,834,574 bp End 98,839,458 bp
RNA expression pattern Bgee Human Mouse (ortholog) Top expressed in ganglionic eminence ventricular zone buccal mucosa cell pars reticulata internal globus pallidus ventral tegmental area pars compacta inferior ganglion of vagus nerve primary visual cortex superior vestibular nucleus n/a More reference expression data BioGPS More reference expression data
Gene ontology Molecular function DNA binding transcription coactivator activity sequence-specific DNA binding DNA-binding transcription activator activity, RNA polymerase II-specific RNA polymerase II cis-regulatory region sequence-specific DNA binding protein binding identical protein binding DNA-binding transcription factor activity DNA-binding transcription factor activity, RNA polymerase II-specific Cellular component transcription regulator complex nucleus Biological process cellular response to organic substance regulation of transcription, DNA-templated astrocyte development hypothalamus cell differentiation Schwann cell development transcription by RNA polymerase II negative regulation of gene expression myelination in peripheral nervous system transcription, DNA-templated regulation of axonogenesis forebrain ventricular zone progenitor cell division neurohypophysis development brain development positive regulation of cell population proliferation epidermis development positive regulation of multicellular organism growth regulation of cell differentiation cerebral cortex radially oriented cell migration positive regulation of transcription by RNA polymerase II regulation of transcription by RNA polymerase II nervous system development neuron differentiation neuron fate commitment neuron fate specification neuron development cell differentiation Sources:Amigo / QuickGO
Orthologs Species Human Mouse Entrez 5454 18992 Ensembl ENSG00000184486 ENSMUSG00000095139 UniProt P20265 P31360 RefSeq (mRNA) NM_005604 NM_008899 RefSeq (protein) NP_005595 NP_032925 Location (UCSC) Chr 6: 98.83 – 98.84 Mb n/a PubMed search
Wikidata
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Function

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.

Disease linkage

The POU3F2 protein associates with the Bipolar disorder. It is involved in the neocortex development in mice, and is linked to a single nucleotide polymorphism, Rs1906252, that is associated with a cognitive phenotype: processing information speed.

Chromosome 6q16.1 deletions resulting in loss of one copy of POU3F2 have been shown to cause a human syndrome of susceptibility to obesity and variable levels of developmental delay and Intellectual Disability.

Interactions

POU3F2 has been shown to interact with PQBP1.

See also

• Octamer transcription factor

Further reading

• Hara Y, Rovescalli AC, Kim Y, Nirenberg M (April 1992). "Structure and evolution of four POU domain genes expressed in mouse brain". Proceedings of the National Academy of Sciences of the United States of America. 89 (8): 3280–4. Bibcode:1992PNAS...89.3280H. doi:10.1073/pnas.89.8.3280. PMC 48850. PMID 1565620.
• Schreiber E, Harshman K, Kemler I, Malipiero U, Schaffner W, Fontana A (September 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 Research. 18 (18): 5495–503. doi:10.1093/nar/18.18.5495. PMC 332229. PMID 2216722.
• He X, Treacy MN, Simmons DM, Ingraham HA, Swanson LW, Rosenfeld MG (July 1989). "Expression of a large family of POU-domain regulatory genes in mammalian brain development". Nature. 340 (6228): 35–41. Bibcode:1989Natur.340...35H. doi:10.1038/340035a0. PMID 2739723. S2CID 4275887.
• Eisen T, Easty DJ, Bennett DC, Goding CR (November 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, Schreiber E, Fries R, Fontana A (March 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, Sutherland GR, Parsons PG, Sturm RA, Thomson F (August 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 (March 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. S2CID 20331599.
• Petersenn S, Rasch AC, Heyens M, Schulte HM (February 1998). "Structure and regulation of the human growth hormone-releasing hormone receptor gene". Molecular Endocrinology. 12 (2): 233–47. doi:10.1210/mend.12.2.0057. PMID 9482665.
• Kuhlbrodt K, Herbarth B, Sock E, Enderich J, Hermans-Borgmeyer I, Wegner M (June 1998). "Cooperative function of POU proteins and SOX proteins in glial cells". The Journal of Biological Chemistry. 273 (26): 16050–7. doi:10.1074/jbc.273.26.16050. PMID 9632656.
• Waragai M, Lammers CH, Takeuchi S, Imafuku I, Udagawa Y, Kanazawa I, Kawabata M, Mouradian MM, Okazawa H (June 1999). "PQBP-1, a novel polyglutamine tract-binding protein, inhibits transcription activation by Brn-2 and affects cell survival". Human Molecular Genetics. 8 (6): 977–87. doi:10.1093/hmg/8.6.977. PMID 10332029.
• Smit DJ, Smith AG, Parsons PG, Muscat GE, Sturm RA (November 2000). "Domains of Brn-2 that mediate homodimerization and interaction with general and melanocytic transcription factors". European Journal of Biochemistry. 267 (21): 6413–22. doi:10.1046/j.1432-1327.2000.01737.x. PMID 11029584.
• Jaegle M, Ghazvini M, Mandemakers W, Piirsoo M, Driegen S, Levavasseur F, Raghoenath S, Grosveld F, Meijer D (June 2003). "The POU proteins Brn-2 and Oct-6 share important functions in Schwann cell development". Genes & Development. 17 (11): 1380–91. doi:10.1101/gad.258203. PMC 196070. PMID 12782656.
• Goodall J, Martinozzi S, Dexter TJ, Champeval D, Carreira S, Larue L, Goding CR (April 2004). "Brn-2 expression controls melanoma proliferation and is directly regulated by beta-catenin". Molecular and Cellular Biology. 24 (7): 2915–22. doi:10.1128/MCB.24.7.2915-2922.2004. PMC 371132. PMID 15024079.
• Goodall J, Wellbrock C, Dexter TJ, Roberts K, Marais R, Goding CR (April 2004). "The Brn-2 transcription factor links activated BRAF to melanoma proliferation". Molecular and Cellular Biology. 24 (7): 2923–31. doi:10.1128/MCB.24.7.2923-2931.2004. PMC 371133. PMID 15024080.
• Cobrinik D, Francis RO, Abramson DH, Lee TC (2007). "Rb induces a proliferative arrest and curtails Brn-2 expression in retinoblastoma cells". Molecular Cancer. 5 (1): 72. doi:10.1186/1476-4598-5-72. PMC 1764425. PMID 17163992.

External links

• POU3F2+protein,+human at the U.S. National Library of Medicine Medical Subject Headings (MeSH)

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