The genomic fragment used in Scer\GAL4VT017251 drives expression of Ecol\lexA.
Optogenetic activation (using Cnoc\ChR1Cs.IVS.13XLexAop2.Venus with red light) of Ecol\lexAVT017251 neurons elicits significant eye grooming behavior, compared to control flies; this grooming behavior decays quickly when the light is turned off.