SNRPN and Prader-Willi syndrome: One current example of this is Nr4a1, which has been proposed as a possible drug target for SNRPN-related neurodevelopment disorders, including Prader-Willi syndrome and ASD (H. Li et al. 2016) and is already under consideration as a drug target in cancer (Hedrick et al. 2015; S. O. Lee et al. 2014).