Predicted to enable DNA-binding transcription factor activity. Involved in several processes, including embryonic morphogenesis; establishment or maintenance of epithelial cell apical/basal polarity; and open tracheal system development. Located in nucleus. Is expressed in several structures, including cardiogenic mesoderm; dorsal ectoderm; dorsal epidermis primordium; embryonic/larval midgut primordium; and epidermis.
FB Description
ribbon (rib) encodes a nuclear BTB-domain protein, expressed in most embryonic cells. It is required for development of the salivary gland and trachea, as well as for dorsal closure. It regulates both growth and differentiation of salivary gland cells.