Abstract
THE CBP protein acts as a transcriptional adaptor for many different transcription factors by directly contacting DNA-bound activators1–7. One mechanism by which CBP is thought to stimulate transcription is by recruiting the histone acetyltransferase (HAT) P/CAF to the promoter8. Here we show that CBP has intrinsic HAT activity. The HAT domain of CBP is adjacent to the binding site for the transcriptional activator El A. Although E1A displaces P/CAF from CBP, it does not disrupt the CBP-associated HAT activity. Thus E1A carries HAT activity when com-plexed with CBP. Targeting CBP-associated HAT activity to specific promoters may therefore be a mechanism by which E1A acts as a transcriptional activator.
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Bannister, A., Kouzarides, T. The CBP co-activator is a histone acetyltransferase. Nature 384, 641–643 (1996). https://doi.org/10.1038/384641a0
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DOI: https://doi.org/10.1038/384641a0
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