...CTGGTCATCATCCTGCCTTT Rabbit beta-globin intron, forward primer Bglob-intron-R TTTGCCCCCTCCATATAACA Rabbit beta-globin intron...AC5 ACACAAAGCCGCTCCATCAG (Invitrogen) Drosophila Actin 5C promoter, forward primer Alpha-factor TACTATTGCCAGCATTGCTGC...reverse primer Bglob-pA-R TTTTGGCAGAGGGAAAAAGA Rabbit beta-globin polyA region, reverse primer CAT-R GCAACTGACTGAAATGCCTC...reverse primer pCAG-F GCAACGTGCTGGTTATTGTG Rabbit beta-globin intron, for pCAG plasmids, forward primer... reverse primer XBG-R GACTCCATTCGGGTGTTC Xenopus beta-globin 3'UTR, reverse primer XEF1a TTTCGCCCTAACTTCGTGAT...