Histone Acetyl Transferases
Histone Acetyl Transferases are involved with the process of acetylation of histone proteins on DNA [1] . Acetylation is mediated by HAT's (Histone Acetyl Transferases) which remove an acetyl group which will consequently be released as acetate. The first nuclear HAT was shown to be homologous to yeast GCN5 which is a transcriptional activator.