An approximately 1kb fragment from the AstC locus (from upstream of the coding sequence) is fused upstream of the Drosophila Synthetic Core Promoter (DSCP) followed by sequence encoding the p65(AD)::Zip+ hemidriver.
Comment: when combined with P{AstC-GAL4.DBD} (combination referred to as 'AstC-mTh-Gal4')