P{EP}NKAINEP560 is inserted outside the open-reading frame of NKAIN.
At room temperature, NKAINEP560 homozygous flies exhibit increased wing beating and excessive grooming compared with wild-type flies. When placed at 38[o]C, homozygous NKAINEP560 flies became severely uncoordinated and exhibit seizure-like movements and become paralyzed within 10 minutes. In contrast, NKAINEP560 heterozygous flies do not show such changes in behavior. When shifted back to room temperature, homozygous flies return to normal within 10-15min.
NKAINEP560/Df(2R)ED4071 flies are not viable. Only a very small number of escapers are found and they die shortly after eclosion. These escapers exhibit temperature-sensitivity paralysis when tested at 38[o]C.