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Possible splicing products of RNAs from minigenes with an MS2 operator within the K-SAM exon. (A) Schematic representation of fragments of minigenes RK12-MS2 and RK15-MS2. MS2, MS2 operator; —, K-SAM exon ESS. CAT sequences are in black. A partial structure of possible spliced RNAs is shown for RK12-MS2. (B) Representation of expected RT-PCR results following transfection of RK12-MS2 into 293 cells, depending on whether the K-SAM exon is spliced or repressed.
