ARID1B（AT-rich interaction domain 1B），癌症关联基因，基因ID：57492，这个位点编码一个富含蛋白质的dna相互作用域。编码蛋白是swi/snf染色质重塑复合物的组成部分，可能在细胞周期激活中起作用。该基因座编码的蛋白质类似于含有1a蛋白的at-rich相互作用域，这两种蛋白作为swi/snf复合物的替代、互斥和亚基发挥作用。相关的复合物起着相反的作用。选择性剪接导致多个转录变体。[由RefSeq提供，2016年10月]This locus encodes an AT-rich DNA interacting domain-containing protein. The encoded protein is a component of the SWI/SNF chromatin remodeling complex and may play a role in cell-cycle activation. The protein encoded by this locus is similar to AT-rich interactive domain-containing protein 1A. These two proteins function as alternative， mutually exclusive ARID-subunits of the SWI/SNF complex. The associated complexes play opposing roles. Alternative splicing results in multiple transcript variants. [provided by RefSeq， Oct 2016]。