The P{EP} element is inserted within the eighth intron, upstream of all PUF domains.
anterior fascicle & synapse, with Scer\GAL4elav-C155
Mutant larvae expressing pumEP3038 under the control of Scer\GAL4elav-C155 have reduced or abnormal synapses. Mutant larvae expressing pumEP3038 under the control of Scer\GAL4elav-C155 have ISN neuron pathfinding defects.