Introduction
 Histones
Histones are a family of basic, positively charged proteins that associate with DNA inside the nucleus to help condense the DNA into chromatin [1].  The nuclear DNA is wrapped around the histone in order to fit in the nucleus.  Nucleosomes are chromatin beads made up of DNA wrapped around eight histone proteins, or a histone octamer [1].  Each histone octamer is made up of two copies of four different histone proteins, H2A, H2B, H3 and H4 [1].  
Epigenetics
Histone Deacetylase
 HDAC8
Histone Deacetylase 8
 Structure
 General Structure Information
 Inhibitor
 Potassium Binding Site
 Deacetylation
 Zn2+ Metal Ion Mechanism
  Figure 1. Mechanism of HDAC8
 
 Active Site
 Disease
HDACis