E4F1

Transcription factor E4F1 is a protein that in humans is encoded by the E4F1 gene.

Function

The zinc finger protein encoded by this gene is one of several cellular transcription factors whose DNA-binding activities are regulated through the action of adenovirus E1A. A 50-kDa amino-terminal product is generated from the full-length protein through proteolytic cleavage. The protein is differentially regulated by E1A-induced phosphorylation. The full-length gene product represses transcription from the E4 promoter in the absence of E1A, while the 50-kDa form acts as a transcriptional activator in its presence.

Interactions

E4F1 has been shown to interact with:

  • P16,
  • P53, and
  • RB1
  • References

    Further reading

    External links

  • E4F1 protein, human at the US National Library of Medicine Medical Subject Headings (MeSH)
  • This article incorporates text from the United States National Library of Medicine, which is in the public domain.


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