HISTONE-LYSINE N-METHYLTRANSFERASE, H3 LYSINE-9 SPECIFIC 1 (EC 2.1.1.43) (HISTONE H3-K9 METHYLTRANSFERASE 1) (H3-K9-HMTASE 1) (SUPPRESSOR OF VARIEGATION 3-9 HOMOLOG 1) (SU(VAR)3-9 HOMOLOG 1). [Source:SWISSPROT;Acc:O43463]