该基因编码一个具有多个同源结构域和锌指基序的转录因子，并调节肌源性和神经元分化。编码的蛋白质通过与富含at的增强子基序结合抑制甲胎蛋白基因的表达。该蛋白还被证明对c-myb具有负性调节作用，并反式激活细胞周期抑制剂细胞周期蛋白依赖性激酶抑制剂1a（也称为p21cip1）。据报道，该基因在几种癌症中起到抑癌作用，其序列变异也与心房颤动有关。从交替启动子表达并编码不同亚型的多个转录变体已经被发现。[由RefSeq提供，2009年9月]
This gene encodes a transcription factor with multiple homeodomains and zinc finger motifs, and regulates myogenic and neuronal differentiation. The encoded protein suppresses expression of the alpha-fetoprotein gene by binding to an AT-rich enhancer motif. The protein has also been shown to negatively regulate c-Myb, and transactivate the cell cycle inhibitor cyclin-dependent kinase inhibitor 1A (also known as p21CIP1). This gene is reported to function as a tumor suppressor in several cancers, and sequence variants of this gene are also associated with atrial fibrillation. Multiple transcript variants expressed from alternate promoters and encoding different isoforms have been found for this gene. [provided by RefSeq, Sep 2009]