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Epac2-camps300
cAMP FRET sensor based on PKA
cAMP
binding
Bimolecular or other
FRET
N/A
YFP| Epac2B (E285-E443), K405E|CFP
Epac2B (E285-E443), K405E
YFP|CFP
added point mutation decreases EC50 to 320 nM