Transcription factor jun-B is a protein that in humans is encoded by the JUNB gene. Transcription factor jun-B is a transcription factor involved in regulating gene activity following the primary growth factor response. It binds to the DNA sequence 5'-TGA[CG]TCA-3'. Interactions JUNB has been shown to interact with BRCA1, and SMAD3. See also AP-1 (transcription factor) References Further reading External links Transcription factors