Protein: Histone-lysine N-methyltransferase family member SUVH2 (Cytosine-HMTase 2) (H3-K27-HMTase 2) (H4-K20-HMTase 2) (Histone H3-K9 methyltransferase 2) (H3-K9-HMTase 2) (Protein SET DOMAIN GROUP 3) (Suppressor of variegation 3-9 homolog protein 2) (Su(var)3-9 homolog protein 2)