UAS regulatory sequences drive expression of Hsap\BHLHE41 carrying the P384R mutation (a mutation found in a family with familial natural short sleep). The protein is tagged with Tag:MYC and Tag:polyHis.
Flies over-expressing Hsap\BHLHE41P384R.Scer\UAS.T:Hsap\MYC,T:Zzzz\His6 have a shortened sleep cycle.