Overexpression of atlScer\UAS.T:Hsap\MYC driven by Scer\GAL4arm.PS does not affect mEJP amplitude at the NMJ of third instar larvae.
Overexpression of atlScer\UAS.T:Hsap\MYC driven by Scer\GAL4Toll-6-D42 causes accumulation of large endoplasmic reticulum punctae in motor neuron cell bodies and axons in third instar larvae; excitatory junction potential (EJP) amplitude is significantly decreased (at 0.1 mM Ca[2+], accompanied by a significant decrease in frequency of synaptic transmission successes); corrected quantal content at 1.5 mM Ca[2+] significantly decreases compared to controls at the neuromuscular junction of third instar larvae.
Expression of atlScer\UAS.T:Hsap\MYC under the control of Scer\GAL4ey.PH or Scer\GAL4GMR.PF results in a rough eye or a small eye phenotype, respectively.
Ultrastructural analysis shows considerable disruption of endoplasmic reticulum (ER) networks in neurons as a result of atlScer\UAS.T:Hsap\MYC] overexpression driven by Scer\GAL4D42. Normal tubular ER profiles are absent in atlScer\UAS.T:Hsap\MYC] overexpressing motoneurons where ER membranes form expanded cisternae.
Scer\GAL4ey.PH, atlUAS.Tag:MYC has visible | adult stage phenotype, enhanceable by TER94UAS.cRa/Scer\GAL4ey.PH
Scer\GAL4GMR.PF, atlUAS.Tag:MYC has visible | adult stage phenotype, enhanceable by TER94UAS.cRa/Scer\GAL4GMR.PF
Scer\GAL4GMR.PF, atlUAS.Tag:MYC has abnormal size | adult stage phenotype, enhanceable by TER94UAS.cRa/Scer\GAL4GMR.PF
Scer\GAL4GMR.PF, atlUAS.Tag:MYC has visible | adult stage phenotype, suppressible | partially by TER9403775/TER94[+]
Scer\GAL4GMR.PF, atlUAS.Tag:MYC has abnormal size | adult stage phenotype, suppressible | partially by TER9403775/TER94[+]
Scer\GAL4GMR.PF, atlUAS.Tag:MYC has visible | adult stage phenotype, suppressible | partially by TER94[+]/TER9422-30
Scer\GAL4GMR.PF, atlUAS.Tag:MYC has abnormal size | adult stage phenotype, suppressible | partially by TER94[+]/TER9422-30
Scer\GAL4GMR.PF, atlUAS.Tag:MYC has visible | adult stage phenotype, suppressible | partially by TER94[+]/TER94k15502
Scer\GAL4GMR.PF, atlUAS.Tag:MYC has abnormal size | adult stage phenotype, suppressible | partially by TER94[+]/TER94k15502
Scer\GAL4GMR.PF, atlUAS.Tag:MYC has visible | adult stage phenotype, suppressible | partially by TER94[+]/TER9426-8
Scer\GAL4GMR.PF, atlUAS.Tag:MYC has abnormal size | adult stage phenotype, suppressible | partially by TER94[+]/TER9426-8
Scer\GAL4ey.PH, atlUAS.Tag:MYC has eye phenotype, enhanceable by TER94UAS.cRa/Scer\GAL4ey.PH
Scer\GAL4GMR.PF, atlUAS.Tag:MYC has eye phenotype, enhanceable by TER94UAS.cRa/Scer\GAL4GMR.PF
Scer\GAL4ey.PH, atlUAS.Tag:MYC has eye phenotype, suppressible | partially by TER94[+]/TER94k15502
Scer\GAL4ey.PH, atlUAS.Tag:MYC has eye phenotype, suppressible | partially by TER94[+]/TER9426-8
Scer\GAL4ey.PH, atlUAS.Tag:MYC has eye phenotype, suppressible | partially by TER9403775/TER94[+]
Scer\GAL4ey.PH, atlUAS.Tag:MYC has eye phenotype, suppressible | partially by TER94[+]/TER9422-30
The small eye phenotype characteristic for adult flies expressing atlScer\UAS.T:Hsap\MYC under the control of Scer\GAL4GMR.PF is exacerbated further by co-expression of TER94Scer\UAS.cRa and is significantly ameliorated by combination with a single copy of any of the following alleles: TER9403775, TER9422-30, TER94k15502 or TER9426-8. The rough eye phenotype of flies expressing atlScer\UAS.T:Hsap\MYC driven by Scer\GAL4ey.PH is also worsened by TER94Scer\UAS.cRa co-expression leading to rough eyes of reduced size.
Expression of atlScer\UAS.T:Hsap\MYC driven by Scer\GAL4arm.PS significantly rescues decreased EJP amplitude at the NMJ of atl2/atl2 third instar larvae.