The GMR21E09 enhancer fragment followed by the Drosophila synthetic core promoter (DSCP) is fused upstream of the p65(AD)::Zip+ hemidriver (component of a 'split driver' system, contains the p65 activation domain).
Comment: when combined with P{R16H11-GAL4.DBD}
Comment: when combined with P{R28H10-GAL4.DBD}