Construct: Nucleotide substitution: A?C. Nucleotide substitution: G?U. Nucleotide substitution: C?A. Nucleotide substitution: U?G. Nucleotide substitution: A?C. Nucleotides 6-96 of the nos 3'UTR, with the above mutations in the third Brd box-like motif, have been inserted into a NheI site within the αTub84B 3'UTR sequences.