FlipGFP, a novel fluorescence protease reporter to study apoptosis
Type
Blog Post
...caspases, protease enzymes that cleave proteins. Executioner caspases are activated last in the cascade and...scientists have used genetically encoded fluorescent executioner caspase reporters. Several apoptosis reporters...Forster resonance energy transfer (FRET)-based executioner caspase reporters. In these reporters, the FRET... an improved apoptosis reporter, ZipGFP, which utilized the self-assembling split GFP (GFP1-10 and GFP11... of the linkers is a consensus caspase-3 (an executioner caspase) cleavage site (DEVD). Upon cleavage ...of sfCherry approximately 20 fold by directed evolution. They then optimized the length of both linkers...fold increase in fluorescence after cleavage by executioner caspases. Failure for cells to die or cells dying...