An Hsp70 promoter drives expression of the full-length norpA cDNA.
norpAhs.PW rescues norpAP24
Expression of norpAhs.PW using heat shock in a norpA36 background results in a rescue of the electroretinogram (ERG) response, depending on the level of norpA protein expression. After a 15 minute heat shock, the flies express approximately 3.8% of the normal protein level and show a severe slow termination of the light response. As the duration of the heat shock is increased, the termination of the photoresponse becomes faster, and expression of approximately 20% of the normal protein level restores a wild-type ERG.