Groucho (IPR009146) is a Groucho/transducin-like enhancer. The Groucho (Gro)/transducin-like enhancers (TLEs) are a group of corepressor proteins that have been around for a long time and have been passed down from generation to generation. They are important for controlling many developmental and cellular pathways, including lateral repression, segmentation, sex determination, dorsal/ventral patterning, terminal patterning, and eye development.