Undifferentiated embryonic cell transcription factor 1 (UTF1)

Undifferentiated embryonic cell transcription factor 1 (UTF1) is a chromatin-associated transcription factor highly expressed in embryonic stem (ES) cells, embryonic carcinoma (EC) cells, and germ line tissues but absent in mature somatic tissues[1][2]. It acts primarily as a transcriptional repressor and coactivator, displaying both repressive and coactivation functions depending on context. UTF1 contains a Myb/SANT domain and a leucine zipper motif, both essential for its association with chromatin and regulatory activity[1][2]. Functionally, UTF1 plays a crucial role in promoting and initiating the differentiation of ES cells, while its knockdown delays or blocks differentiation without affecting self-renewal[1]. Its nuclear localization, strong DNA association, and dynamic chromatin-binding properties are reminiscent of core histones, indicating a possible architectural role in chromatin structure during early development[1]. While UTF1 is a key pluripotency marker and regulator, there are currently no known drugs or direct therapeutic strategies targeting it, nor documented associations with specific human diseases[1][2].

Other names

UTF1undifferentiated embryonic cell transcription factor 1