Abstract
Protein acetylation is a reversible modification that has been implicated in epigenetic regulation of gene expression. It is widely accepted that acetylation enzymes are present at transcriptionally active promoters and deacetylation enzymes associate with transcriptionally silent loci. These results notwithstanding, recent findings indicate that positive regulation of gene expression by interferons and other cytokines requires both acetylation and deacetylation.
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