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.
ScerGAL4NP2113 drives expression in gustatory receptor neurons in around two-thirds of labellar pseudotracheal taste pegs which project to the LS1 and LS2 regions of the labial sensory center as well as to regions PMS1-3 of the posterior maxillary sensory center and the anteriormost region of the anterior maxillary sensory center (AMS1). Expression is also observed in non-neural cells in the lateral part of the labellum. Faint labeling is detected in some neurons of the maxillary palpus.
Location 2L:5490329-5490464 determined by FlyBase alignment of dbGSS accession AG216748 to D. melanogaster arm Release_4 and heterochromatin Release_3.2b. Insertion orientation revised.