CBFB(core-binding factor, beta subunit),癌症关联基因,基因ID:865,该基因编码的蛋白质是属于pebp2/cbf转录因子家族的异二聚体核心结合转录因子的β亚单位,该转录因子家族主要调控造血(例如runx1)和成骨(例如runx2)特异性基因的宿主。β亚单位是一种非DNA结合调节亚单位;当复合物与各种增强子和启动子(包括小鼠白血病病毒、多瘤病毒增强子、T细胞受体增强子和GM-CSF启动子)的核心部位结合时,它通过α亚单位变构增强DNA结合。选择性剪接产生两个mRNA变异体,每个变异体编码一个不同的羧基末端。在某些情况下,16号染色体的中心周围逆转录[inv(16)(p13q22)]在与平滑肌肌球蛋白重链11的C端部分融合时产生由核结合因子β的N端组成的嵌合转录物。这种染色体重排与M4EO亚型的急性髓性白血病有关。两个编码不同亚型的转录变体已经被发现。The protein encoded by this gene is the beta subunit of a heterodimeric core-binding transcription factor belonging to the PEBP2/CBF transcription factor family which master-regulates a host of genes specific to hematopoiesis (e.g., RUNX1) and osteogenesis (e.g., RUNX2). The beta subunit is a non-DNA binding regulatory subunit; it allosterically enhances DNA binding by alpha subunit as the complex binds to the core site of various enhancers and promoters, including murine leukemia virus, polyomavirus enhancer, T-cell receptor enhancers and GM-。