Through its E3 ubiquitin ligase activity, MKRN3 serves as a negative regulator of GnRH secretion on the transcriptional and translational level, and MKRN3 depletion contributes to hypogonadism, infertility, and central precocious puberty (CPP) in PWS [13,21,32,33,34]. The gene discussed is MKRN3; the disease is central precocious puberty.