- Short heterodimer partner (SHP) orphan nuclear receptor inhibits the transcriptional activity of aryl hydrocarbon receptor (AHR)/AHR nuclear translocator (ARNT). Klinge, C.M., Jernigan, S.C., Risinger, K.E., Lee, J.E., Tyulmenkov, V.V., Falkner, K.C., Prough, R.A. Arch. Biochem. Biophys. (2001)