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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

RUNX1 associates with histone deacetylases and SUV39H1 to repress transcription.

RUNX1 (AML1) is a gene that is frequently disrupted by chromosomal translocations in acute leukemia. Like its Drosophila homolog Runt, RUNX1 both activates and represses transcription. Both Runt and RUNX1 are required for gene silencing during development and a central domain of RUNX1, termed repression domain 2 (RD2), was defined as being required for transcriptional repression and for the silencing of CD4 during T-cell maturation in thymic organ cultures. Although transcriptional co-repressors are known to contact other repression domains in RUNX1, the factors that bind to RD2 had not been defined. Therefore, we tested whether RD2 contacts histone-modifying enzymes that may mediate both repression and gene silencing. We found that RD2 contacts SUV39H1, a histone methyltransferase, via two motifs and that endogenous Suv39h1 associates with a Runx1-regulated repression element in murine erythroleukemia cells. In addition, one of these SUV39H1-binding motifs is also sufficient for binding to histone deacetylases 1 and 3, and both of these domains are required for full RUNX1-mediated transcriptional repression. The association between RUNX1, histone deacetylases and SUV39H1 provides a molecular mechanism for repression and possibly gene silencing mediated by RUNX1.Oncogene (2006) 25, 5777-5786. doi:10.1038/sj.onc.1209591; published online 1 May 2006.[1]


  1. RUNX1 associates with histone deacetylases and SUV39H1 to repress transcription. Reed-Inderbitzin, E., Moreno-Miralles, I., Vanden-Eynden, S.K., Xie, J., Lutterbach, B., Durst-Goodwin, K.L., Luce, K.S., Irvin, B.J., Cleary, M.L., Brandt, S.J., Hiebert, S.W. Oncogene (2006) [Pubmed]
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