Rabbit anti-Human SETMAR Polyclonal Antibody

Uniprot Id

Q53H47

Target Species

Human

Target Name

SETMAR

Target Full Name

Histone-lysine N-methyltransferase SETMAR

Target Function

Protein derived from the fusion of a methylase with the transposase of an Hsmar1 transposon that plays a role in DNA double-strand break repair, stalled replication fork restart and DNA integration. DNA-binding protein, it is indirectly recruited to sites of DNA damage through protein-protein interactions. Has also kept a sequence-specific DNA-binding activity recognizing the 19-mer core of the 5'-terminal inverted repeats (TIRs) of the Hsmar1 element and displays a DNA nicking and end joining activity. In parallel, has a histone methyltransferase activity and methylates 'Lys-4' and 'Lys-36' of histone H3. Specifically mediates dimethylation of H3 'Lys-36' at sites of DNA double-strand break and may recruit proteins required for efficient DSB repair through non-homologous end-joining. Also regulates replication fork processing, promoting replication fork restart and regulating DNA decatenation through stimulation of the topoisomerase activity of TOP2A.

Target Subcellular Location

Nucleus. Chromosome.

Target Protein Families

Class V-like SAM-binding methyltransferase superfamily; Mariner transposase family

Target Tissue Specificity

Widely expressed, with highest expression in placenta and ovary and lowest expression in skeletal muscle.

Target Synonyms

Histone lysine N methyltransferase; Histone lysine N methyltransferase SETMAR; Hsmar 1; Hsmar1; Mariner transposase Hsmar1; Metnase; SET domain and mariner transposase fusion; SET domain and mariner transposase fusion gene; SET domain and mariner transposase fusion gene containing protein; SET domain and mariner transposase fusion gene-containing protein; Setmar; SETMR_HUMAN

Target Background

This gene encodes a fusion protein that contains an N-terminal histone-lysine N-methyltransferase domain and a C-terminal mariner transposase domain. The encoded protein binds DNA and functions in DNA repair activities including non-homologous end joining and double strand break repair. The SET domain portion of this protein specifically methylates histone H3 lysines 4 and 36. This gene exists as a fusion gene only in anthropoid primates, other organisms lack mariner transposase domain. Alternate splicing results in multiple transcript variants.