Transgenic construct used in an enhancer-blocking assay to analyze the Fab-7 element of the bithorax complex and its ability to form a chromatin domain boundary. Derived from P{wRW+we}; a fragment of random DNA (2.3kb NotI-XhoI fragment of BicD cDNA) has been inserted between the w enhancer and w transcription unit.
Construct: 0.5kb of scs' sequences.
report comment: Contains a mini-white gene flanked by the eye- and testis-specific enhancer region from white 5\' and an scs\' sequence 3\'. A fragment of "random" DNA derived from BicD has been inserted between the enhancer and the mini-white gene.