Construct: A portion of the c terminal ICD region has been removed.
Deletion of the cleavage site (therefore protein tethered to membrane) and internalization signal (amino acids 872-883) of the Appl coding region.
Expressing ApplsdΔNPTY.UAS under the control of Scer\GAL4GMR91H05 does not induce retraction of adult giant fiber terminals.
When ApplScer\UAS.cTa is driven by Scer\GAL4sca-537.4 no phenotype is seen.
When expression is driven in the motoneurons muscles 6 and 7 (abdominal segment 3) total number of synaptic boutons is increased, percentage of satellite boutons is decreased slightly and the number of normal boutons is dramatically increased.