Lighting Up Cell Signaling with Photoswitchable Kinases
Type
Blog Post
Published
July 25, 2017, 1:20 p.m.
...status of MEK1/2 was tracked at 5 minute intervals via Western blot. Phosphorylation of MEK1/2 peaks at just...PubMed PMID: 28232577. Figures 2-4 were modified from this reference.
2. Regot, Sergi, Jacob J. Hughey...Treatment of the cells with a PP1/PP2A inhibitor leads to maintenance of phosphorylated MEK1/2 levels, suggesting...precisely control the timing of kinase activity.
2. Studying negative feedback loops of signaling pathways... studied the negative feedback on endogenous MEK1/2 phosphorylation by creating a short pulse of psRaf1...activity. They did this by exposing psRaf1 to a short 2 minute pulse of 500 nm light (turn on psRaf1) followed...suggesting PP1/PP2A is responsible for this MEK1/2 negative feedback.
3. Studying signaling pathways in...