...Jian Wang; Ching-Hsien J. Lee; Suewei Lin; Tzumin Lee Polyhomeotic (Ph), which forms complexes with other Polycomb-group (PcG)proteins, is widely required for maintenance of cell identity by ensuring differential gene expression patterns in distinct types of cells. Genetic mosaic screens in adult...

...Karine Narbonne; Florence Besse; Jeanine Brissard-Zahraoui; Anne-Marie Pret; Denise Busson The polyhomeotic ( ph ) gene of Drosophila is a member of the Polycomb group ( Pc -G) genes, which are required for maintenance of a repressed state of homeotic gene transcription, which stabilizes cell...

...Florence Maschat; Nuria Serrano; Neel B. Randsholt; Gérard Géraud ABSTRACT Engrailed is a nuclear regulatory protein with essential roles in embryonic segmentation and wing morphogenesis. One of its regulatory targets in embryos was shown to be the Polycomb group gene, polyhomeotic . We show here...

... of its regulatory targets appears to be polyhomeotic (ph) , a Polycomb group gene. We observed, by immunostaining, that Engrailed protein binds to the site of the polyhomeotic locus in region 2D of polytene chromosomes. The same analysis carried out on a transgenic line containing one copy of a P ( ph...