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Su(var)3-9

Gene
Su(var)3-9
Protein
Histone-lysine N-methyltransferase Su(var)3-9
Organism
Drosophila melanogaster
Length
635 amino acids
Function
Histone methyltransferase that specifically trimethylates 'Lys-9' of histone H3 using monomethylated H3 'Lys-9' as substrate. H3 'Lys-9' trimethylation represents a specific tag for epigenetic transcriptional repression by recruiting Su(var)205/HP1 to methylated histones. Mainly functions in heterochromatin regions, thereby playing a central role in the establishment of constitutive heterochromatin at pericentric regions. Involved in heterochromatic gene silencing including the modification of position-effect-variegation.
Similarity
Belongs to the class V-like SAM-binding methyltransferase superfamily. Histone-lysine methyltransferase family. Suvar3-9 subfamily.
Mass
71.904 kDa
Sequence
MATAEAQIGVNRNLQKQDLSNLDVSKLTPLSPEVISRQATINIGTIGHVAHGKSTVVKAISGVQTVRFKNELERNITIKLERLSEKKIKNLLTSKQQRQQYEIKQRSMLRHLAELRRHSRFRRLCTKPASSSMPASTSSVDRRTTRRSTSQTSLSPSNSSGYGSVFGCEEHDVDKIPSLNGFAKLKRRRSSCVGAPTPNSKRSKNNMGVIAKRPPKGEYVVERIECVEMDQYQPVFFVKWLGYHDSENTWESLANVADCAEMEKFVERHQQLYETYIAKITTELEKQLEALPLMENITVAEVDAYEPLNLQIDLILLAQYRAAGSRSQREPQKIGERALKSMQIKRAQFVRRKQLADLALFEKRMNHVEKPSPPIRVENNIDLDTIDSNFMYIHDNIIGKDVPKPEAGIVGCKCTEDTEECTASTKCCARFAGELFAYERSTRRLRLRPGSAIYECNSRCSCDSSCSNRLVQHGRQVPLVLFKTANGSGWGVRAATALRKGEFVCEYIGEIITSDEANERGKAYDDNGRTYLFDLDYNTAQDSEYTIDAANYGNISHFINHSCDPNLAVFPCWIEHLNVALPHLVFFTLRPIKAGEELSFDYIRADNEDVPYENLSTAVRVECRCGRDNCRKVLF

Gene
Su(var)3-9
Protein
Histone-lysine N-methyltransferase Su(var)3-9
Organism
Drosophila pseudoobscura pseudoobscura
Length
633 amino acids
Function
Histone methyltransferase that specifically trimethylates 'Lys-9' of histone H3 using monomethylated H3 'Lys-9' as substrate. H3 'Lys-9' trimethylation represents a specific tag for epigenetic transcriptional repression by recruiting Su(var)205/HP1 to methylated histones. Mainly functions in heterochromatin regions, thereby playing a central role in the establishment of constitutive heterochromatin at pericentric regions. Involved in heterochromatic gene silencing including the modification of position-effect-variegation (By similarity).
Similarity
Belongs to the class V-like SAM-binding methyltransferase superfamily. Histone-lysine methyltransferase family. Suvar3-9 subfamily.
Mass
71.612 kDa
Sequence
MATAEAQVNVNRNLQKQDLRNLEVSNLTPLSPEVISRQATINIGTIGHVAHGKSTVVKAISGVQTVRFKNELERNITIKLERLSEKKIKLLLKSKHQRHKYDIQQQKLLRILAERRKARAMTPLAPASVLAPSMETARPRLRSTSLNSLSPSNSSGYGSILGCDDSDQSSQLVLKPNVLKRRRSNCVQIPTPAAKRSRKNDGTTVKRRPKGEYIVEKIESVEVVQFQPVFFVKWLGYDVSANTWESYVNLSDCAEMEKFVERHLQLHQHYIAQITGELDTQLSDIPQTEDLKTISIAEIDAYDPLELQIDFILLAQYRAAASRSQREPERIGARALHRMQVRRSHFARRKQLIDLLLFEHRMNRVELPSPPIRVENNWDLDTIDSGFKYIQKNIIGEGVPKPQAGLVGCMCRHQSGEQCTASSMCCGRMAGEIFAYDRTTGRLRLRPGSAIYECNSRCSCDESCTNRVVQNGRKHPLVLFKTSNGSGWGVRTPQPLKKGVFVCEYIGEIITCEEANERGKAYDDNGRTYLFDLDYNTSRDSEYTVDAANFGNISHFINHSCDPNLAVFPCWIEHLNTALPHLVFFTIRPIKAGEELSFDYIRADNEEVPYENLSTAARVQCRCGAANCRKVLF