Table 3.

Voltage GEFIs

Name	Permutant	Sensor Unit	λex, nm	λem, nm	RA	Kinetic Range	Reference
ElectricPK	cpEGFP	CiVSD	NM	NM	−1.2% per 100 mV	In ms range	[147]
ASAP1	cpsfGFP-OPT	GgVSD	NM	NM	−18% per 100 mV	In ms range	[86]
ASAP2f	cpsfGFP-OPT	GgVSD	NM	NM	−35% per 100 mV [149]	In ms range	[97]
ASAP2s	cpsfGFP-OPT	GgVSD	NM	NM	−39% per 100 mV	In ms range	[98]
ASAP-Y	cpsfGFP-OPT	GgVSD	NM	NM	Improved kinetics due to elimination of intermediate state		[150]
ASAP3	cpsfGFP-OPT	GgVSD	NM	NM	−51% per 100 mV	In ms range	[149]
VSFP(D)cpmKate(180)	cpmKate	CiVSD	NM	625	1.2% per 200 mV	Slow kinetics	[146]
VSFP(C)cpmKate(180)	cpmKate	CiVSD	NM	625	1.9% per 200 mV	Slow kinetics	[146]
FlicR1	cpmApple	CiVSD	570	597	6.6% per 100 mV	In ms range	[94]
VSD-FR189–188	cpFusionRed	Kv3.1-CiVSP	574	610	3% per 100 mV	Slow kinetics	[151]

The raw colors refer to the colors of fluorescent proteins used as reporter domains. NM—not measured. RA—response amplitude.