The expression of Nlg1Scer\UAS.cMa under the control of Scer\GAL4Mef2.PU does not lead to significant changes in the number of synaptic boutons at the third instar larval neuromuscular junction, as compared to controls.
Driving expression of wild-type Nlg1Scer\UAS.cMa in the muscle using Scer\GAL4BG487 increases bouton number above wild-type levels by greater than 40%.
Overexpression of Nlg1Scer\UAS.cMa in the muscles of wild-type larvae (under the control of Scer\GAL4BG487) reduces mEJC amplitude by 25% and EJC amplitude by over 60%.
Nlg1Scer\UAS.cMa overexpression in muscle (under the control of Scer\GAL4BG487) causes synaptic overgrowth and inhibition of glutamate release.
Nlg1UAS.cMa, Scer\GAL4BG487 has abnormal neuroanatomy phenotype, suppressible by Nrx-1273
Nlg1UAS.cMa, Scer\GAL4BG487 has abnormal neurophysiology phenotype, suppressible by Nrx-1273
Nlg1UAS.cMa, Scer\GAL4BG487 has synapse phenotype, suppressible by Nrx-1273
Nlg1UAS.cMa, Scer\GAL4BG487 has bouton phenotype, suppressible by Nrx-1273
Synaptic overgrowth caused by Nlg1Scer\UAS.cMa overexpression in the muscle (under the control of Scer\GAL4BG487) is suppressed by Nrx-1273.
Overexpression of Nlg1Scer\UAS.cMa in a Nrx-1273 mutant background does not increase bouton number above that of the negative control (Scer\GAL4BG487/Nlg1Scer\UAS.cMa; Nrx-1273/+).
The inhibitory effects of Nlg1Scer\UAS.cMa overexpression on evoked synaptic transmission are suppressed in Nrx-1273 mutants. EJC amplitude is also significantly restored in these flies.
Scer\GAL4Mef2.PU/Nlg1UAS.cMa partially rescues Nlg1Δ46
The expression of Nlg1Scer\UAS.cMa under the control of Scer\GAL4Mef2.PU rescues the decreased number of synaptic boutons observed at the Nlg1Δ46 homozygous third instar larval neuromuscular junction.
Driving expression of wild-type Nlg1Scer\UAS.cMa in the muscles of Nlg1Δ46 mutants using Scer\GAL4BG487 increases bouton number above wild-type levels by greater than 40%.
Unlike bouton number, EJC amplitude in Nlg1Δ46 mutants is not restored by postsynaptic expression of Nlg1Scer\UAS.cMa.