TAL effector (TALE)–based transcription factors robustly induce transcription when targeted to DNase I hypersensitive sites in a gene promoter in human cells, even more so when several TALE transcription factors work in synergy at the same promoter. Tunable expression of endogenous genes will be of great interest in basic research and in synthetic biology.
- Morgan L Maeder
- Samantha J Linder
- J Keith Joung