A 1.3 kb fragment of the presumed shop promoter region (the intergenic region between the 5' end of the shop ORF and the start of the 3rd exon of htk) regulates expression of GAL4.
ScerGAL4shop.1.3 drives expression in embryonic/larval ensheathing glial cells that overlaps with that driven by AvicGFPEGFP.repo.Tag:NLS(tra).