A set of transgenic insertion stocks derived by TE mobilization using the P-element construct P{GawB}. The P{GawB} construct carries a w+mW.hs mini-white visible marker and Scer\GAL4 driver/enhancer trap sequences. The GAL4-UAS system is a binary system using Scer\GAL4, a yeast transcription activator protein gene, and Scer\UAS, the DNA binding site for the GAL4 protein. The P{GawB} construct acts as an enhancer trap: expression of the GAL4 is sensitive to enhancers in the genomic region of an insertion. When paired with a construct or insertion carrying a reporter gene downstream of Scer\UAS, the reporter gene is driven by and reflects the expression of the GAL4.
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ScerGAL4NP2297 drives expression in mushroom body extrinsic neurons, including mushroom body medial lobe arborizing neuron 1, mushroom body medial lobe arborizing neuron 7 and mushroom body calyx-pedunculus arborizing neuron 1, that innervate mushroom body gamma lobe slice, mushroom body beta lobe slices 1 and 2, and mushroom body beta' lobe slice 2.
ScerGAL4NP2297 drives expression in 7 uniglomerular projection neurons. Around 2 cell bodies are located in the anterio-dorsal part of the antennal lobe around 5 cell bodies can be found in the lateral part. These neurons project to three glomeruli VC3m. Labeling is also detected in one cell body in the adult subesophageal zone. This neuron projects to glomeruli D, DA2, DL5, DM3, DM6, V, VA6, VC1, VM7v, DA1, DA3, DA4l, DA4m, DC1, DC3, VA1s, VA1v, DL2v, VL1 VC3l, VL2a, VP4, VP2, VP3 and DC4.
Arborisation within the calyx and pedunculus is due to the mushroom body calyx-pedunculus arborizing neuron 1.