To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie 5. DL-mCh-LEXY and DL-mCh-BLID in the dark, with 10 min of blue light and with 20 min of blue light. Related to Fig. 4. Target gene responses differ when transcription factor levels are acutely decreased by nuclear export versus degradation James McGehee, and Angelike Stathopoulos Development 2024. 151:None-None; doi: 10.1242/dev.202775 Download Original Video