The retinoid X receptor (RXR) is a nuclear hormone receptor—meaning that it sits on various parts of the genome—and turns genes “on” and “off.” RXR is known to play an important role in many fundamental biological processes such as reproduction, cellular differentiation, bone development, and hematopoiesis. Continue reading “A nuclear receptor that binds more than 5,000 sites in the genome—and promotes angiogenesis.”