Rabbit anti-Human KMT5B Polyclonal Antibody

Uniprot Id

Q4FZB7

Target Species

Human

Target Name

KMT5B

Target Full Name

Histone-lysine N-methyltransferase KMT5B

Target Function

Histone methyltransferase that specifically methylates monomethylated 'Lys-20' (H4K20me1) and dimethylated 'Lys-20' (H4K20me2) of histone H4 to produce respectively dimethylated 'Lys-20' (H4K20me2) and trimethylated 'Lys-20' (H4K20me3) and thus regulates transcription and maintenance of genome integrity. In vitro also methylates unmodified 'Lys-20' (H4K20me0) of histone H4 and nucleosomes. 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. Facilitates TP53BP1 foci formation upon DNA damage and proficient non-homologous end-joining (NHEJ)-directed DNA repair by catalyzing the di- and trimethylation of 'Lys-20' of histone H4. May play a role in class switch reconbination by catalyzing the di- and trimethylation of 'Lys-20' of histone H4.

Target Subcellular Location

Nucleus. Chromosome.

Target Protein Families

Class V-like SAM-binding methyltransferase superfamily, Histone-lysine methyltransferase family, Suvar4-20 subfamily

Target Synonyms

CGI 85; CGI85; Histone-lysine N-methyltransferase KMT5B; Kmt5b; KMT5B_HUMAN; Lysine N-methyltransferase 5B; Lysine-specific methyltransferase 5B; MGC118906; MGC118909; MGC21161; MGC703; Su(var)4-20 homolog 1; Suppressor of variegation 4 20 homolog 1; Suppressor of variegation 4-20 homolog 1; Suv4-20h1

Target Background

This gene encodes a protein that contains a SET domain. SET domains appear to be protein-protein interaction domains that mediate interactions with a family of proteins that display similarity with dual-specificity phosphatases (dsPTPases). The function of this gene has not been determined. Several alternatively spliced transcript variants encoding different isoforms have been found for this gene.