SETMAR（SET domain and mariner transposase fusion gene），癌症关联基因，基因ID：6419，该基因编码一个融合蛋白，该蛋白包含一个N-末端组蛋白赖氨酸N-甲基转移酶结构域和一个C-末端水手转座酶结构域编码蛋白与DNA结合，参与DNA的非同源末端连接和双链断裂修复该蛋白的集合结构域部分特异性地甲基化组蛋白H3赖氨酸4和36这种基因在灵长类动物中只作为一个融合基因存在，其他生物缺乏水手的领域。交替剪接导致多个转录变体。[由RefSeq提供，2013年1月]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. [provided by RefSeq， Jan 2013]。