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CALWY
CFP-Atox1-linker-WD4-YFP
Zn2+
binding
Unimolecular
FRET
N/A
CFP | Atox1 |(GGSGGS)x2 5 or 9 Linker| WD4 | YFP
Atox1 | WD4
CFP | YFP
Different linker length repeats result in tune-able dynamic range and affinity (not independently)