catalyzing reactions involved in the demethylation of DNA and histones.   [Figure 1 - Click to

nucleosome is composed of 147 base pairs of DNA wrapped around eight histones (paired histones: H2A, H2B

signaling molecules, transcription factors , and enzymes . Notably, the acetylation of histones plays a role

catalyzing reactions involved in the demethylation of DNA and histones. Table 1. Enzymes Requiring

In the nucleus of a cell, DNA is coiled around proteins called histones , thereby forming the