Histone Methyltransferases

**Definition:** Enzymes that catalyze the transfer of methyl groups to LYSINE or ARGININE residues of HISTONES, especially histone H3 and histone H4 proteins. They play a critical role in EPIGENETIC PROCESSES.

**Tree numbers:** - D08.811.913.555.500.800.200

**Synonyms:** - Histone Methylase - Histone Methyltransferase