NR2F2, an orphan member of the nuclear hormone receptor superfamily, acts as a transcriptional repressor by antagonizing the functions of other nuclear hormone receptors and by actively silencing transcription. However, in certain contexts, NR2F2 stimulates transcription directly. NR2F2, MyoD and p300 interact in a competitive manner, and that increasing amounts of NR2F2 have the ability to reduce the interaction between myoD and p300 invitro. NR2F2 post-transcriptionally regulates myoD activity/function, and that crosstalk between orphan nuclear receptors and the myogenic bHLH proteins has functional consequences for differentiation.
