Fig. 1
From: Epigenetics-targeted drugs: current paradigms and future challenges

Epigenetic mechanisms and key examples of widely studied modifications and their modifying enzymes. a DNA modifications, histone modifications, RNA modifications, chromatin remodeling, and the regulation based on non-coding RNA constitute the core content of epigenetics, being responsible for passing on heritable variations of genetic information independently of the DNA sequence. b Epigenetic modifications are reversible progress catalyzed by functionally complementary modifying enzymes, which provide targets for disease therapeutics