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HDAC

HDAC

HDAC (Histone Deacetylases) are a group of enzymes that allow histones to more tightly wrap the DNA by removing acetyl groups (O=C-CH3) from -N-acetyl lysine amino acids. This is significant because DNA is wrapped around histones and that acetylation and de-acetylation control how DNA is expressed. In contrast to histone acetyltransferase, it acts differently. Since non-histone proteins are also among their targets, HDAC proteins are now also referred to as lysine deacetylases (KDAC) in order to better reflect their mode of action. The histone deacetylases are members of the ancient protein superfamily known as the histone deacetylase superfamily, along with the acetylpolyamine amidohydrolases and the acetoin utilization proteins.

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