POU domain, class 2, transcription factor 1

Definition:

Transcription factor that binds to the octamer motif (5'-ATTTGCAT-3') and activates the promoters of the genes for some small nuclear RNAs (snRNA) and of genes such as those for histone H2B and immunoglobulins. Modulates transcription transactivation by NR3C1, AR and PGR.; (Microbial infection) In case of human herpes simplex virus (HSV) infection, POU2F1 forms a multiprotein-DNA complex with the viral transactivator protein VP16 and HCFC1 thereby enabling the transcription of the viral immediate early genes.

References:

[1]. Joanna Wysocka, et al. The herpes simplex virus VP16-induced complex: the makings of a regulatory switch. Trends Biochem Sci. 2003 Jun;28(6):294-304. [Content Brief]

[2]. N Segil, et al. Mitotic phosphorylation of the Oct-1 homeodomain and regulation of Oct-1 DNA binding activity. Science. 1991 Dec 20;254(5039):1814-6. [Content Brief]

[3]. M Strubin, et al. OBF-1, a novel B cell-specific coactivator that stimulates immunoglobulin promoter activity through association with octamer-binding proteins. Cell. 1995 Feb 10;80(3):497-506. [Content Brief]

[4]. G G Préfontaine, et al. Selective binding of steroid hormone receptors to octamer transcription factors determines transcriptional synergism at the mouse mammary tumor virus promoter. J Biol Chem. 1999 Sep 17;274(38):26713-9. [Content Brief]

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