The R31C06 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). A Hsp70 transcriptional terminator is present.
Comment: when combined with P{R20A03-p65.AD}
when combined with P{R20A03-p65.AD} (combination referred to as 'L4')
Comment: when combined with P{R20A03-p65.AD} (combination referred to as 'L4a-Gal4')
Silencing of L4 lamina output neurons, using Hsap\RELAAD.R20A03.T:Zzzz\Zip+, Scer\GAL4DBD.R31C06.T:Zzzz\Zip- and Hsap\KCNJ2Scer\UAS.T:Avic\GFP-EGFP, impairs fly responses to monocular progressive but not regressive motion.
Activation of L4 lamina output neurons, using Hsap\RELAAD.R20A03.T:Zzzz\Zip+, Scer\GAL4DBD.R31C06.T:Zzzz\Zip- and TrpA1Scer\UAS.cUa, decreases fly responses to progressive motion and increases responses to regressive motion stimuli.
Silencing of L4 lamina output neurons, using Hsap\RELAAD.R20A03.T:Zzzz\Zip+, Scer\GAL4DBD.R31C06.T:Zzzz\Zip- and Hsap\KCNJ2Scer\UAS.T:Avic\GFP-EGFP, abolishes reverse-optomotor inversion at high speeds.
Silencing of L4 lamina output neurons, using Hsap\RELAAD.R20A03.T:Zzzz\Zip+, Scer\GAL4DBD.R31C06.T:Zzzz\Zip- and Hsap\KCNJ2Scer\UAS.T:Avic\GFP-EGFP, compresses the height of the contrast sensitivity tuning function.
Split-GAL4 transgene, constructed as described in FBrf0212052.