Transcription factor E2F3 is a protein that in humans is encoded by the E2F3 gene. [5]
The protein encoded by this gene is a member of the E2F family of transcription factors. The E2F family plays a crucial role in the control of cell cycle and action of tumor suppressor proteins and is also a target of the transforming proteins of small DNA tumor viruses. The E2F proteins contain several evolutionally conserved domains found in most members of the family. These domains include a DNA binding domain, a dimerization domain which determines interaction with the differentiation regulated transcription factor proteins (DP), a transactivation domain enriched in acidic amino acids, and a tumor suppressor protein association domain which is embedded within the transactivation domain. This protein and another 2 members, E2F1 and E2F2, have an additional cyclin binding domain. This protein binds specifically to retinoblastoma protein pRB in a cell-cycle dependent manner. Alternative gene splicing is found in the mouse homolog, but has not reported in human yet. [6]
E2F3 has been shown to interact with TFE3, [7] IGF2. [8] and RYBP. [9]
This article incorporates text from the United States National Library of Medicine, which is in the public domain.