POU domain, class 5, transcription factor 1


POU domain, class 5, transcription factor 1
  • Oct-3
  • Oct-4
  • OCT3
  • OCT4
  • Octamer-binding protein 3
  • Octamer-binding protein 4
  • Octamer-binding transcription factor 3
  • OTF-3
  • OTF3
Gene Name
Amino acid sequence
>lcl|BSEQ0007044|POU domain, class 5, transcription factor 1
Number of residues
Molecular Weight
Theoretical pI
GO Classification
DNA binding / miRNA binding / poly(A) RNA binding / RNA polymerase II transcription factor activity, sequence-specific DNA binding / sequence-specific DNA binding / transcription factor activity, sequence-specific DNA binding / transcription factor binding / transcription regulatory region DNA binding / transcription regulatory region sequence-specific DNA binding / transcriptional repressor activity, RNA polymerase II transcription regulatory region sequence-specific binding / ubiquitin protein ligase binding
anatomical structure morphogenesis / blastocyst development / BMP signaling pathway involved in heart induction / cardiac cell fate determination / cell fate commitment involved in formation of primary germ layer / endodermal cell fate specification / mRNA transcription from RNA polymerase II promoter / negative regulation of gene silencing by miRNA / negative regulation of transcription from RNA polymerase II promoter / positive regulation of catenin import into nucleus / positive regulation of SMAD protein import into nucleus / positive regulation of transcription from RNA polymerase II promoter / regulation of asymmetric cell division / regulation of gene expression / regulation of heart induction by regulation of canonical Wnt signaling pathway / regulation of methylation-dependent chromatin silencing / regulation of transcription, DNA-templated / response to wounding / somatic stem cell population maintenance / transcription from RNA polymerase II promoter
cytoplasm / cytosol / nucleoplasm / nucleus / transcription factor complex
General Function
Ubiquitin protein ligase binding
Specific Function
Transcription factor that binds to the octamer motif (5'-ATTTGCAT-3'). Forms a trimeric complex with SOX2 on DNA and controls the expression of a number of genes involved in embryonic development such as YES1, FGF4, UTF1 and ZFP206. Critical for early embryogenesis and for embryonic stem cell pluripotency.
Pfam Domain Function
Transmembrane Regions
Not Available
Cellular Location
Gene sequence
>lcl|BSEQ0007043|1083 bp
Chromosome Location
Not Available
External Identifiers
UniProtKB IDQ01860
UniProtKB Entry NamePO5F1_HUMAN
GenBank Protein ID35169
GenBank Gene IDZ11898
General References
  1. Takeda J, Seino S, Bell GI: Human Oct3 gene family: cDNA sequences, alternative splicing, gene organization, chromosomal location, and expression at low levels in adult tissues. Nucleic Acids Res. 1992 Sep 11;20(17):4613-20. [PubMed:1408763]
  2. Stuart PE, Nair RP, Hiremagalore R, Kullavanijaya P, Kullavanijaya P, Tejasvi T, Lim HW, Voorhees JJ, Elder JT: Comparison of MHC class I risk haplotypes in Thai and Caucasian psoriatics shows locus heterogeneity at PSORS1. Tissue Antigens. 2010 Nov;76(5):387-97. doi: 10.1111/j.1399-0039.2010.01526.x. Epub 2010 Aug 19. [PubMed:20604894]
  3. Shiina T, Ota M, Shimizu S, Katsuyama Y, Hashimoto N, Takasu M, Anzai T, Kulski JK, Kikkawa E, Naruse T, Kimura N, Yanagiya K, Watanabe A, Hosomichi K, Kohara S, Iwamoto C, Umehara Y, Meyer A, Wanner V, Sano K, Macquin C, Ikeo K, Tokunaga K, Gojobori T, Inoko H, Bahram S: Rapid evolution of major histocompatibility complex class I genes in primates generates new disease alleles in humans via hitchhiking diversity. Genetics. 2006 Jul;173(3):1555-70. Epub 2006 May 15. [PubMed:16702430]
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  6. Wey E, Lyons GE, Schafer BW: A human POU domain gene, mPOU, is expressed in developing brain and specific adult tissues. Eur J Biochem. 1994 Mar 15;220(3):753-62. [PubMed:7908264]
  7. Abdel-Rahman B, Fiddler M, Rappolee D, Pergament E: Expression of transcription regulating genes in human preimplantation embryos. Hum Reprod. 1995 Oct;10(10):2787-92. [PubMed:8567814]
  8. Suo G, Han J, Wang X, Zhang J, Zhao Y, Zhao Y, Dai J: Oct4 pseudogenes are transcribed in cancers. Biochem Biophys Res Commun. 2005 Dec 2;337(4):1047-51. Epub 2005 Oct 4. [PubMed:16229821]
  9. Takahashi K, Tanabe K, Ohnuki M, Narita M, Ichisaka T, Tomoda K, Yamanaka S: Induction of pluripotent stem cells from adult human fibroblasts by defined factors. Cell. 2007 Nov 30;131(5):861-72. [PubMed:18035408]
  10. Lee J, Kim HK, Han YM, Kim J: Pyruvate kinase isozyme type M2 (PKM2) interacts and cooperates with Oct-4 in regulating transcription. Int J Biochem Cell Biol. 2008;40(5):1043-54. doi: 10.1016/j.biocel.2007.11.009. Epub 2007 Nov 29. [PubMed:18191611]
  11. Xu H, Wang W, Li C, Yu H, Yang A, Wang B, Jin Y: WWP2 promotes degradation of transcription factor OCT4 in human embryonic stem cells. Cell Res. 2009 May;19(5):561-73. doi: 10.1038/cr.2009.31. [PubMed:19274063]
  12. Spelat R, Ferro F, Curcio F: Serine 111 phosphorylation regulates OCT4A protein subcellular distribution and degradation. J Biol Chem. 2012 Nov 2;287(45):38279-88. doi: 10.1074/jbc.M112.386755. Epub 2012 Sep 28. [PubMed:23024368]
  13. Brumbaugh J, Hou Z, Russell JD, Howden SE, Yu P, Ledvina AR, Coon JJ, Thomson JA: Phosphorylation regulates human OCT4. Proc Natl Acad Sci U S A. 2012 May 8;109(19):7162-8. doi: 10.1073/pnas.1203874109. Epub 2012 Apr 2. [PubMed:22474382]

Drug Relations

Drug Relations
DrugBank IDNameDrug groupPharmacological action?ActionsDetails