| Variant | Recognition element | FRET Pair | Apo ratio* | Delta ratio | Delta ratio (%) | Kd (µM) | E. coli | Addgene | |
| FLIPPi-260n | E. coli | ECFP-Venus | 1.76 | -0.13 | -7 | AddGene pRSET-B link | |||
| FLIPPi-770n | E. coli | ECFP-Venus | 2.62 | -1.07 | -41 | pRSET-B | |||
| FLIPPi-4u | E. coli | ECFP-Venus | 3.05 | -1.34 | -44 | Addgene pRSET-B link | |||
| FLIPPi-5u | E. coli | ECFP-Venus | 3.1 | -1.33 | -43 | Addgene pRSET-B link | |||
| FLIPPi-200u | E. coli | ECFP-Venus | 3.22 | -1.13 | -35 | Addgene pRSET-B link | |||
| FLIPPi-30m | E. coli | ECFP-Venus | 3.01 | -1.03 | -34 | Addgene pRSET-B link |
