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Target intelligence / Profile preview
E2F Transcription Factor 1 (E2F1)
- Target
- E2F1
- Molecular classification
- Transcription factor
01
Overview
E2F transcription factor 1 (E2F1) is a key member of the E2F family of transcription factors. It plays a central role in regulating cell cycle progression, DNA repair, differentiation, and apoptosis. E2F1 functions as a transcription activator by binding to specific DNA sequences in promoter regions of target genes. Its activity is tightly regulated by retinoblastoma protein pRB; when pRB is phosphorylated or absent, free E2F1 activates its target genes promoting S-phase entry. E2F1 has strong pro-apoptotic activity and is uniquely phosphorylated by ATM/CHK upon genotoxic stress. Overexpression or dysregulation contributes to oncogenesis making it a target for anticancer drug development.
- Other names
- E2F family member 1Transcription factor E2F1E2 factor transcription factor 1
02
Mechanism of action
Inhibition of E2F1 transcriptional activity
03
Biological functions
Cell cycleApoptosisCell proliferationDNA repairDifferentiationG1/S transition
04
Disease associations
Cancer
05
Safety considerations
Potential for off-target effects due to E2F1's broad role in cellular processes.Induction of apoptosis in non-cancerous cells.Development of resistance mechanisms.
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