FlyBase curator comment: this entry represents a transgenic construct where the particular construct used cannot be determined.
Expression of Ube3aTRiP.cUa driven by Scer\GAL4elav.PU or Scer\GAL4RapGAP1-OK6 (but not Scer\GAL4C57) leads to a significant increase in total boutons (and satellite boutons) at the neuromuscular junction, compared to wild type third instar larvae.