Insertion within the large intron of kdn.
Re-mobilisation of the transposon causes the lethality phenotype to be lost.
The giant fiber(GF)-dorsal longitudinal indirect flight muscle (DLM) neuronal circuit is more sensitive to seizure induction in kdnPC64/kdnPG129 mutants than in wild-type flies; seizures can be induced with high-frequency brain stimulation of shorter or less intensity in the mutant animals. The mutant animals show type I seizures.
Precise excision of the insertion reverts the lethal phenotype.