The R29G11 enhancer fragment is fused upstream of the Drosophila synthetic core promoter (DSCP) followed by the GAL4(DBD)::Zip- hemidriver (component of the 'Split GAL4' system, contains the GAL4 DNA-binding domain). An Hsp70 transcriptional terminator is present.
The R53G02 enhancer fragment is fused upstream of the Drosophila synthetic core promoter (DSCP) followed by the p65(AD)::Zip+ hemidriver (component of a 'split driver' system, contains the p65 activation domain). A Hsp70 transcriptional terminator is present.
Employing the intersectional Split-Gal4 method ScerGAL4DBD.R29G11 drives expression in a subset of lamina monopolar neurons L1 and L2 when combined with HsapRELAAD.R75H09 or HsapRELAAD.R48A08. In combination with HsapRELAAD.R53G02 expression is exclusively seen in lamina monopolar neuron L2. In combination with HsapRELAAD.R35A03 expression is driven in centrifugal neurons C3 and in less than 20 lobula plate intrinsic neurons. In combination with HsapRELAAD.R26H02 expression is driven exclusively in centrifugal neurons C3.