ASH1L（ASH1 like histone lysine methyltransferase），癌症关联基因，基因ID：55870，该基因编码转录激活因子trithorax组的一个成员该蛋白包含四个AT-hooks、一个集合结构域、一个PHD-finger基序和一个bromodomain它局限于细胞核中的许多小斑点，也局限于细胞-细胞紧密连接处[由RefSeq提供，2008年7月]This gene encodes a member of the trithorax group of transcriptional activators. The protein contains four AT hooks， a SET domain， a PHD-finger motif， and a bromodomain. It is localized to many small speckles in the nucleus， and also to cell-cell tight junctions. [provided by RefSeq， Jul 2008]。