Protein: Histone-lysine N-methyltransferase ash1 (EC 2.1.1.354) (Absent small and homeotic disks protein 1) (Lysine N-methyltransferase 2H) (Q9VW15)
Organism: Drosophila melanogaster (Fruit fly)
Function: Trithorax group (TrxG) protein that has histone methyltransferase activity. Specifically trimethylates 'Lys-4' of histone H3 (H3K4me3), a specific tag for epigenetic transcriptional activation. TrxG proteins are generally required to maintain the transcriptionally active state of homeotic genes throughout development. Does not act as a coactivator required for transcriptional activation, but specifically prevents inappropriate Polycomb Group (PcG) silencing of homeotic genes in cells in which they must stay transcriptionally active.
Subcellular location: Nucleus. Chromosome {ECO:0000269|PubMed:10454589, ECO:0000269|PubMed:8725238}. Note=Localizes at the promoter of active genes. {ECO:0000269|PubMed:16882982}.
Interaction partners:
- NuA4 complex subunit EAF3 homolog
- Ubiquitin carboxyl-terminal hydrolase puf
- Calmodulin-lysine N-methyltransferase
- Procollagen-lysine,2-oxoglutarate 5-dioxygenase
- Histone-lysine N-methyltransferase Set2
- Histone-lysine N-methyltransferase trithorax
- Bromodomain-containing protein homolog
- Histone H3
- Nucleosome-remodeling factor subunit NURF301
- Protein male-specific lethal-3
Sequence:
MSCSQNETAAAKVLETQRAQESGSENEETDSITDQSSQSKSIKSATQFSVQRSDTDGLRMRISAIRPTLGVVATKKPPKSRKMSTQDTESGCSEAKNRAVSKKVKVKRKKLASSSGISKSDKVSKSKKSQISAFSSDSEDDLPLKVHQQRAPRVLLSAIIQAAQSASKPTLDIGISSSDNELPNLVQAAIKRVESDTEDTTVEGSFRKAAKDKNLPQYQSTLLQDFMEKTQMLGQTVNAKLAEEKVAKAKEETLVQTAVPRKRRGRPKKVVPTVPAPGNSGPAINESADSGVISTTSTTQSTTPSPKMQNENAVPTGSLPIASSSKPKIDMAYLDKRMYATERVLYPPPRSKRRQNNKKTACSSSNKEELQLDPLWREIDVNKKFRLRSMSVGAASGTGASTTICSKVLAAKSGYVSDYGSVRHQRSSHNHNSGYKSDASCKSRYSTKSCMSRRSRAKSCGYRSDCKESGKSGLRMRRKRRASMLLKSSADDTVEDQDILQLAGLSLGQSSEESNEYISKPSLKSLPTTSASKKYGEINRYVTTGQYFGRGGSLSATNPDNFISKMMNQRKETPAPSKSSCKIKSRRSSAASMCSSYVSGVSRMRRRHRRKSFSHNKSLNIDSKLLTEIEIITSTFNSRCRIQDDRLTGSSGKEKLLADANKLQATLAAPSPAQQLTLNGGGPASTLSKPLKRGLKKRKLSEPLVDFAMLSASASGTPNGSGSSNGNTKRRHKKSQSNDSSSPDDHKLPLKKRHYLLTPGERPPAEVAFANGKLNAEAWAAAAAAAKSTASTKSQAQFNARSVKSALTPKKRHLLEQPTSVSGAGSSASNSPLRIVVDNNSISGGKLLDISPSSLCSLKQQRRGGAAKQKVSAAKDLVQLQSPAGSYPPPGVFEPSVELEIQIPLSKLNESVITKAEVESPLLSALDIKEDTKKEVGQRVVETLLHKTGGNLLLKRKRKKINRTGFPTVRRKKRKVSVEQQTTAVIDEHEPEFDPDDEPLQSLRETRSSNNVNVQAAPNPPLDCERVPQAGEARETFVARTNQKAPRLSVVALERLQRPQTPARGRPRGRKPKNREQAEAAPQPPPKSEPEIRPAKKRGRQPKQPVLEEPPPTPPPQQKKNKMEPNIRLPDGIDPNTNFSCKIRLKRRKNLEAGTQPKKEKPVQPVTVEEIPPEIPVSQEEIDAEAEAKRLDSIPTEHDPLPASESHNPGPQDYASCSESSEDKASTTSLRKLSKVKKTYLVAGLFSNHYKQSLMPPPAKVNKKPGLEEQVGPASLLPPPPYCEKYLRRTEMDFELPYDIWWAYTNSKLPTRNVVPSWNYRKIRTNVYAESVRPNLAGFDHPTCNCKNQGEKSCLDNCLNRMVYTECSPSNCPAGEKCRNQKIQRHAVAPGVERFMTADKGWGVRTKLPIAKGTYILEYVGEVVTEKEFKQRMASIYLNDTHHYCLHLDGGLVIDGQRMGSDCRFVNHSCEPNCEMQKWSVNGLSRMVLFAKRAIEEGEELTYDYNFSLFNPSEGQPCRCNTPQCRGVIGGKSQRVKPLPAVEAKPSGEGLSGRNGRQRKQKAKKHAQRQAGKDISSAVAVAKLQPLSEKEKKLVRQFNTFLVRNFEKIRRCKAKRASDAAATASSPALGTTNGDIPGRRPSTPSSPSLAAQISALCSPRNIKTRGLTQAVHDPELEKMAKMAVVLRDICSAMETLKMSDLLTTVSSKKKKPIKTTLSGKLGSTAATSKVEFRSIQAQVEQGHYKTPQEFDDHMQQLFVEAKQQHGDDEGKEKALQSLKDSYEQQKIASYVQLVEILGDSESLQSFKPKEVLSSEEEPGKIAVKKSPGAKERDSPIVPLKVTPPPLLPIEASPDEDVIRCICGLYKDEGLMIQCSKCMVWQHTECTKADIDADNYQCERCEPREVDREIPLEEFTEEGHRYYLSLMRGDLQVRQGDAVYVLRDIPIKDESGKVLPTKKHTYETIGAIDYQECDIFRVEHLWKNELGKRFIFGHHFLRPHETFHEPSRRFYPNEVVRVSLYEVVPIELVIGRCWVLDRTTFCKGRPMECNDEDHCYICELRVDKTARFFSKAKANHPACTKSYAFRKFPEKIKISKSYAPHDVDPSLLKTRKQKTELDVGAGPTTMHKVSGRQEQHQAKMVGRKPRGISAPADATAVHVVTPVAPNKQMLKKRKSRLENVLITMKLKCLDAQTAQEQPIDLSYLLSGRGARQRKTQQSSSSSTANST