UASt regulatory sequences drive expression of RpII215 in which the C-terminal domain (CTD) has been replaced with an all-consensus CTD composed of 52 YSPTSPS heptads. The coding sequence is tagged at the C-terminal end with two copies of Tag:FLAG and has been rendered resistant to RNAi by the P{TRiP.GL01068} line by synonymous mutations in the sequence targeted by the P{TRiP.GL01068} shRNA (AACGGTGAAACTGTCGAACAA mutated to AACCGTCAAGTTGAGCAACAA).
Polr2A52con.UAS.Tag:FLAG/Scer\GAL4Bx-MS1096 partially rescues Polr2AGL01068
Polr2A52con.UAS.Tag:FLAG/Scer\GAL4Act5C.PI fails to rescue Polr2AGL01068