UAS regulatory sequences drive expression of the "let-7-C" polycistronic transcription unit which encodes the mir-100, let-7 and mir-125 microRNAs.
Expression of P{UAS-let7C} under the control of Scer\GAL4let7C restores climbing activity in Df(2L)let-7-CKO1/Df(2L)let-7-CGKI adults.