Contains a Ppyr\LUCDCTN2-p50.mLm marker, a single FRT site, the lncRNA:roX1 locus (including the chromatin entry site), and a loxP site. Generated from PBac{DCTN2-p50-pLUC(roX1).w+mC.(1.688-3F)} by P1cre-mediated excision of the loxP-flanked sequence.