... fusions in the studies of mammalian development. developmental regulation of mammalian homeobox genes in the CNS . J. Physiol . 84 , 21 – 26 . 17 11 1992 © 1993 by Company of Biologists 1993 transcriptional regulation homeobox Engrailed transgenic mice lacZ reporter...

... not ectopic. The higher sensitivity that may be achieved with the lacZ reporter system, together with a higher resolution of the signal due to a lower background, could enable visualization of mRAR-β2 promoter activity in sites that contained low levels of transcripts, or in sites at which transcripts were...