Protein
Histone-lysine N-methyltransferase KMT5B
Organism
Rattus norvegicus
Function
Histone methyltransferase that specifically trimethylates 'Lys-20' of histone H4. H4 'Lys-20' trimethylation represents a specific tag for epigenetic transcriptional repression. Mainly functions in pericentric heterochromatin regions, thereby playing a central role in the establishment of constitutive heterochromatin in these regions. KMT5B is targeted to histone H3 via its interaction with RB1 family proteins (RB1, RBL1 and RBL2). Plays a role in myogenesis by regulating the expression of target genes, such as EID3 (By similarity).
Similarity
Belongs to the class V-like SAM-binding methyltransferase superfamily. Histone-lysine methyltransferase family. Suvar4-20 subfamily.
Sequence
MKWLGDSKNMVVNGRRNGSKLSNDHQQNQSKLQHAGKDALKTGRNAVERRPNRCHGNSGFEGQSRYVPSSGMSAKELCENDDLATSLVLDPYLGFQTHKMNTSAFPSRSSRHISKADSFSHNNPMRFRPIKGRQEELKEVIERFKKDEHLEKAFKCLTSGEWARHYFLNKNKMQEKLFKEHVFIYLRMFATDSGFEILPCNRYSSEQNGAKIVATKEWKRNDKIELLVGCIAELSEIEENMLLRHGENDFSVMYSTRKNCAQLWLGPAAFINHDCRPNCKFVSTGRDTACVKALRDIEPGEEISCYYGDGFFGENNEFCECYTCERRGTGAFKSRVGLPAPAPVINSKYGLRETDKRLNRLKKLGDSSKSSDSQSVSSNTDADTTQEKDNATSNRKSSVGVKKNSKSRALTRQSMPRVPAASNSTSPKLVHMNNSRVPKKLRKPAKPLLSKIKLRNHCKRLDQKSTSRKLEMGNLVLKEPKVVLYKNLPIKKEREAEGPVHAAVGSGCLTRHAAREHRQNPGRGAHSQGDSLPCTYTTRRSLRTRTGLKETTDIKLAPSPLDGYKNGILEPYPDSGQQPTPEVLEELAPETALREEASQECPKSDSCPSRKKFRQGKPVKHLAKTEDCSPEHSFPGKDGLPDLPGPHPDQGEPSGTVRVPVSYTDSAPSPVGCSIVTPDSFTTKDSFRTAQSKKKRRVTRYDAQLILENSSGIPKLTLRRRHDSSSKTNDHESDSVNSSKISIKLSKDHESDSNLYVAKLSNGVSSGPGSSSTKLKIQLKRDEESRGPCAEGLHENGVCCSDPLSLLESQMEVDDYSQYEEDSTDDSSSSEGEEEEEDCEDDFDDDFIPLPPAKRLRLIVGKDSIDIDISSRRREDQSLRLNA