microtubule & synapse, with Scer\GAL4BG487
microtubule & synapse, with Scer\GAL4futsch-C380
When aPKCM.Scer\UAS is driven by Scer\GAL4C380 (presynaptically) or Scer\GAL4BG487 (postsynaptically) a reduction in the number of synaptic boutons is seen. Muscle size is unaffected. When aPKCM.Scer\UAS is driven by Scer\GAL4C380 (presynaptically) the microtubules in the terminal boutons are more numerous and 65% longer than in control NMJs. When aPKCM.Scer\UAS is driven by Scer\GAL4BG487 (postsynaptically) microtubules (MTs) surrounding synaptic boutons are significantly sparser than wild-type. In these larvae,, the Spectrin-rich area is expanded and is seen to fill much of the space devoid of MTs. The morphology of the synaptic boutons is also aberrant. The separation between individual boutons is often lost in these boutons. Animals expressing aPKCM.Scer\UAS driven by Scer\GAL4BG487 (postsynaptically) exhibit a substantial decrease in spontaneous miniature excitatory junctional potential (mEJP) amplitude. The frequency of mEJPs is decreased. The amplitude of evoked junctional potentials (EJPs) is decreased by 75%. The overall quantal content is dramatically reduced in mutants.
Scer\GAL4futsch-C380/aPKCM.UAS is a non-suppressor of bouton phenotype of futschK68