trapping mechanism

Positive feedback loops and epigenetic traps

Transcription factor trapping by RNA in gene regulatory elements Conclusion: …bidirectional transcription of active enhancers and promoters evolved, in part, to facilitate trapping of TFs at specific regulatory elements. The model also suggests that transcription of regulatory elements produces a positive-feedback loop that may contribute to the stability of gene expression programs in cells. The Positive feedback loops and epigenetic traps