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    Cell. 1996 Nov 29;87(5):953-9.

    The transcriptional coactivators p300 and CBP are histone acetyltransferases.

    Ogryzko VV, Schiltz RL, Russanova V, Howard BH, Nakatani Y.

    Source

    Laboratory of Molecular Growth Regulation, National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland 20892-2753, USA.

    Abstract

    p300/CBP is a transcriptional adaptor that integrates signals from many sequence-specific activators via direct interactions. Various cellular and viral factors target p300/CBP to modulate transcription and/or cell cycle progression. One such factor, the cellular p300/CBP associated factor (PCAF), possesses intrinsic histone acetyltransferase activity. Here, we demonstrate that p300/CBP is not only a transcriptional adaptor but also a histone acetyltransferase. p300/CBP represents a novel class of acetyltransferases in that it does not have the conserved motif found among various other acetyltransferases. p300/CBP acetylates all four core histones in nucleosomes. These observations suggest that p300/CBP acetylates nucleosomes in concert with PCAF.

    PMID:
    8945521
    [PubMed - indexed for MEDLINE]

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