932bp fragment from wrapper ( 2R:18267450-18268381 from BAC CH322-90D04, corresponding to the 1st intron of the wrapper gene used in P{GMR54H02-GAL4}) drives expression of a GAL4(DBD)::Zip- hemidriver (component of the 'Split GAL4' system, contains the GAL4 DNA-binding domain).
3.5kb fragment upstream of nrv2 (2R: 6796551-6800095) drives expression of a VP16(AD)::Zip+ hemidriver (component of a 'split driver' system, contains the VP16 activation domain).