Histone-lysine N-methyltransferase SETDB2 (SETDB2)

Histone methyltransferase involved in left-right axis specification in early development and mitosis. Especially trimethylates'Lys-9' of histone H3 (H3K9me3).

H3K9me3 is a particular tag for epigenetic transcriptional repression that recruits HP1 (CBX1, CBX3 and/or CBX5) proteins to methylated histones. Contributes to H3K9me3 in both the interspersed repetitive elements and centromere-associated repeats.