Jump to navigation Jump to search
External IDsGeneCards: [1]
RefSeq (mRNA)



RefSeq (protein)



Location (UCSC)n/an/a
PubMed searchn/an/a
View/Edit Human

Signal transducer and activator of transcription 2 is a protein that in humans is encoded by the STAT2 gene.[1][2] It is a member of the STAT protein family.


The protein encoded by this gene is a member of the STAT protein family. In response to cytokines and growth factors, STAT family members are phosphorylated by the receptor associated kinases, and then form homo- or heterodimers that translocate to the cell nucleus where they act as transcription activators. In response to interferon (IFN), this protein forms a complex with STAT1 and IFN regulatory factor family protein p48 (IRF9), in which this protein acts as a transactivator, but lacks the ability to bind DNA directly. Transcription adaptor P300/CBP (EP300/CREBBP) has been shown to interact specifically with this protein, which is thought to be involved in the process of blocking IFN-alpha response by adenovirus.[2]


STAT2 has been shown to interact with:


  1. Yan R, Qureshi S, Zhong Z, Wen Z, Darnell JE (Feb 1995). "The genomic structure of the STAT genes: multiple exons in coincident sites in Stat1 and Stat2". Nucleic Acids Research. 23 (3): 459–63. doi:10.1093/nar/23.3.459. PMC 306697. PMID 7885841.
  2. 2.0 2.1 "Entrez Gene: STAT2 signal transducer and activator of transcription 2, 113kDa".
  3. Bhattacharya S, Eckner R, Grossman S, Oldread E, Arany Z, D'Andrea A, Livingston DM (Sep 1996). "Cooperation of Stat2 and p300/CBP in signalling induced by interferon-alpha". Nature. 383 (6598): 344–7. doi:10.1038/383344a0. PMID 8848048.
  4. 4.0 4.1 Li X, Leung S, Kerr IM, Stark GR (Apr 1997). "Functional subdomains of STAT2 required for preassociation with the alpha interferon receptor and for signaling". Molecular and Cellular Biology. 17 (4): 2048–56. doi:10.1128/mcb.17.4.2048. PMC 232052. PMID 9121453.
  5. Uddin S, Chamdin A, Platanias LC (Oct 1995). "Interaction of the transcriptional activator Stat-2 with the type I interferon receptor". The Journal of Biological Chemistry. 270 (42): 24627–30. doi:10.1074/jbc.270.42.24627. PMID 7559568.
  6. Yan H, Krishnan K, Greenlund AC, Gupta S, Lim JT, Schreiber RD, Schindler CW, Krolewski JJ (Mar 1996). "Phosphorylated interferon-alpha receptor 1 subunit (IFNaR1) acts as a docking site for the latent form of the 113 kDa STAT2 protein". The EMBO Journal. 15 (5): 1064–74. PMC 450004. PMID 8605876.
  7. Nguyen VP, Saleh AZ, Arch AE, Yan H, Piazza F, Kim J, Krolewski JJ (Mar 2002). "Stat2 binding to the interferon-alpha receptor 2 subunit is not required for interferon-alpha signaling". The Journal of Biological Chemistry. 277 (12): 9713–21. doi:10.1074/jbc.M111161200. PMID 11786546.
  8. Horvath CM, Stark GR, Kerr IM, Darnell JE (Dec 1996). "Interactions between STAT and non-STAT proteins in the interferon-stimulated gene factor 3 transcription complex". Molecular and Cellular Biology. 16 (12): 6957–64. doi:10.1128/mcb.16.12.6957. PMC 231699. PMID 8943351.
  9. Martinez-Moczygemba M, Gutch MJ, French DL, Reich NC (Aug 1997). "Distinct STAT structure promotes interaction of STAT2 with the p48 subunit of the interferon-alpha-stimulated transcription factor ISGF3". The Journal of Biological Chemistry. 272 (32): 20070–6. doi:10.1074/jbc.272.32.20070. PMID 9242679.
  10. Lau JF, Nusinzon I, Burakov D, Freedman LP, Horvath CM (Jan 2003). "Role of metazoan mediator proteins in interferon-responsive transcription". Molecular and Cellular Biology. 23 (2): 620–8. doi:10.1128/mcb.23.2.620-628.2003. PMC 151539. PMID 12509459.
  11. Huang M, Qian F, Hu Y, Ang C, Li Z, Wen Z (Oct 2002). "Chromatin-remodelling factor BRG1 selectively activates a subset of interferon-alpha-inducible genes". Nature Cell Biology. 4 (10): 774–81. doi:10.1038/ncb855. PMID 12244326.
  12. Li X, Leung S, Qureshi S, Darnell JE, Stark GR (Mar 1996). "Formation of STAT1-STAT2 heterodimers and their role in the activation of IRF-1 gene transcription by interferon-alpha". The Journal of Biological Chemistry. 271 (10): 5790–4. doi:10.1074/jbc.271.10.5790. PMID 8621447.
  13. Dumler I, Kopmann A, Wagner K, Mayboroda OA, Jerke U, Dietz R, Haller H, Gulba DC (Aug 1999). "Urokinase induces activation and formation of Stat4 and Stat1-Stat2 complexes in human vascular smooth muscle cells". The Journal of Biological Chemistry. 274 (34): 24059–65. doi:10.1074/jbc.274.34.24059. PMID 10446176.
  14. Fagerlund R, Mélen K, Kinnunen L, Julkunen I (Aug 2002). "Arginine/lysine-rich nuclear localization signals mediate interactions between dimeric STATs and importin alpha 5". The Journal of Biological Chemistry. 277 (33): 30072–8. doi:10.1074/jbc.M202943200. PMID 12048190.

Further reading

External links

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