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    methyltransferase and HDAC inhibitors

    What methyltransferase and HDAC inhibitors means in Biology A-Level, as defined for AQA.

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    Drugs that inhibit DNA methyltransferase reduce methylation of tumour suppressor genes so they are expressed again, while histone deacetylase inhibitors increase acetylation, loosening the chromatin and allowing transcription.
    AQA · Regulation of transcription and translation (A-level only) (study guide)

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