tokens: In the present study , we show that SRm160 / 300 is required for a purine rich ESE to promote the splicing of a pre mRNA derived from the Drosophila doublesex gene .
folded_tokens: in the present study , we show that srm160 / 300 be require for a purine rich ese to promote the splicing of a pre mrna derive from the drosophila doublesex gene .