Table 2.

Comparison of genetically engineered calcium indicators. Data from Su et al. [58].

Fluorescent Indicator	Targeting Efficiency	Cytosolic Signal Dynamic Range (Maximum Percent Change in Fluorescence or FRET [SEM])	Ciliary Signal Dynamic Range (Maximum Percent Change in Fluorescence or FRET [SEM])
GFP	0%	-	-
5HT6-GFP	90%	-	-
5HT6-GCaMP5G	0%	65.1% [7.9%]
5HT6-YC3.60	80%	58.2% [11.9%]	74.6% [8.8%]
5HT6-G-GECO1.0	75%	135.1% [42.4%]	360.0% [62.1%]
IA-GECO1.0	65%	175.6% [42.3%]	443.1 [39.5%]