Lighting Up Cell Signaling with Photoswitchable Kinases
Type
Blog Post
...cyan light, Dronpa dimers dissociate, Dronpa goes dark, and MEK1 is active or “on.” Dronpa’s color thus... the Dronpa dimers interact and lock MEK1 in an “off” setting by blocking the active site. Dronpa also...Additionally, dimeric Dronpa is less prone to aggregation in cells compared to the tetrameric Dronpa it was derived...activity by attaching two dimerizing photoswitchable Dronpa (dron= a ninja term for vanishing, and pa= photoactivation...similarity. For these three kinases, photoswitchable Dronpa domains were inserted at sites homologous to the...pulse of 500 nm light (turn on psRaf1) followed by 3 seconds of 400 nm light (turn off psRaf1). After this...is responsible for this MEK1/2 negative feedback.
3. Studying signaling pathways in vivo
Expressing photoswitchable...