An XbaI-SmaI fragment containing 800bp of the promoter sequences and 157bp of the upstream-located regulating elements of ninaE drives expression of the Sgre\Ops2 open reading frame. An 800bp fragment containing ninaE downstream-located regulating elements including the polyadenylation signal is also present.
Sgre\Ops2ninaE.PE is a suppressor of phenotype of ninaE17
Sgre\Ops2ninaE.PE suppresses the electroretinogram defects of ninaE17 flies; 'on' and 'off' transients are restored.